EEVblog Electronics Community Forum
EEVblog => EEVblog Specific => Topic started by: firewalker on August 02, 2013, 11:53:36 pm
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EEVblog #502 - $19 Hameg Analog Oscilloscope (https://www.youtube.com/watch?v=ghQYRv68qrU#ws)
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yeah I'd post that I dont have one, but I'm not in the AU :) so I dont have a chance :)
Hope someone gets a good scope :)
I'm still looking for one under $50. but I'm still in the usa :)
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Mine HM-605.
Some other pictures.
(http://i.imgur.com/k2mcCs.jpg) (http://i.imgur.com/k2mcC.jpg) (http://i.imgur.com/A1uKds.jpg) (http://i.imgur.com/A1uKd.jpg)
(http://i.imgur.com/ceuTDs.jpg) (http://i.imgur.com/ceuTD.jpg) (http://i.imgur.com/gCSUGs.jpg) (http://i.imgur.com/gCSUG.jpg)
(http://i.imgur.com/xAOBBs.jpg) (http://i.imgur.com/xAOBB.jpg)
The two channels.
(http://i.imgur.com/rebIPs.jpg) (http://i.imgur.com/rebIP.jpg) (http://i.imgur.com/lWSPKs.jpg) (http://i.imgur.com/lWSPK.jpg)
H.V. Staff.
(http://i.imgur.com/BuJJVs.jpg) (http://i.imgur.com/BuJJV.jpg) (http://i.imgur.com/oTw5ts.jpg) (http://i.imgur.com/oTw5t.jpg)
Calibration Signal output.
(http://i.imgur.com/UC8ers.jpg) (http://i.imgur.com/UC8er.jpg)
Lights on.
(http://i.imgur.com/ibTN1s.jpg) (http://i.imgur.com/ibTN1.jpg) (http://i.imgur.com/GHkdHs.jpg) (http://i.imgur.com/GHkdH.jpg) (http://i.imgur.com/uCOeKs.jpg) (http://i.imgur.com/uCOeK.jpg)
Alexander.
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Oh no, send it to Brazil! It is just not possible to get a scope like that for under around $350.00 here in Brazil.
How much would the shipping cost? Maybe it's worth paying.
Lucky australians! Well, I'll keep looking...
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I would love a scope! After 20 years of not touching electronics I've just recently started playing on some Arduino stuff and as I 'remember' |O the things I'd forgotten I'm also remembering some the techniques of testing (your video's are a gift of manna!).
Scope would be a welcome addition - something I could not get budget approval from The Minister of Home Affairs (a.k.a. Wife :rant: ) - as I work on a TV-Cabinet fan control module based on the TI AMC6821 (can't measure the PWM with my JayCar M/Mtr).
(Bonus is that I'm around the coner from you in Kellyville.)
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yeah I'd post that I dont have one, but I'm not in the AU :) so I dont have a chance :)
Hope someone gets a good scope :)
I'm still looking for one under $50. but I'm still in the usa :)
This was the one that Dave pointed out in the other video that nobody would be looking for. It sold for less than $50
http://pages.ebay.com/link/?nav=item.view&id=300937319076 (http://pages.ebay.com/link/?nav=item.view&id=300937319076)
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This is my fave kind of eevblog videos. There's a bit of everything in there. And I just love the phrase "joy forever" LOL
Of course, I'd want the scope, however I have no space for a lab. I keep bumping into things as it is. I hope it finds a good home...
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I just switched on my first scope ever this afternoon. I haven't looked at the manual yet but I eventually got it to do something. Looking at the square wave out of the cal connector (some weird hole too small for a banana plug) wasn't terribly interesting but it triggers well enough so I connected to an audio cord into the headphone jack of a radio and at least it does what I expected it to do and displayed the audio signal which of course may not be terribly useful for testing purposes but it looks impressive :) Both channels work too
It's an old B&K Precision 1472c I got from a smoky little house out in the woods along with all the other electronics stuff in the room the new owner doesn't want anymore. Why an old man kept so many 5V regulators and big silicon rectifiers in his house we'll never know.
Next I've got to test out the Advance os1000a I got with it. It didn't seem to want to trigger correctly when I turned it on before putting it in my car.
I guess I'm going to have to look around some more for something from at least the 90s to get a more useful oscilloscope.
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Haha good to see you put your money where your mouth is with the under $50 claim. ;)
I'd be interested in the scope. I'm mostly a programmer but I've had a couple of instances where I just wish I could see what was happening in a circuit.
Not enough to fork out for a new one, but definitely enough for a scope with a Dave tick of approval. :)
I'm in NSW if that comes in to the selection criteria at all.
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Oh no, send it to Brazil! It is just not possible to get a scope like that for under around $350.00 here in Brazil.
How much would the shipping cost?
$266
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If I didnt just buy a DS1052E i'd definitely apply to nab this scope. I might just end up grabbing an old CRO from UOW if the school of physics ever decides to part with its mountain of old Hamegs. Might be nice for a demo display or for running a heartbeat generator off.
Ark
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I wish I can win this Oscilloscope! electronics always been a hobby for me, I tried to build and fix lot of stuff, most of my efforts are fails, due to lack of proper knowledge. Now I am studying electronics at the RMIT University, and I am trying to buy and collect all the essential electronic test equipments, but it is hard to find good ones with a cheap price! I bought a cheapy DMM from ebay, and now it is sitting on my bench next to my other poor equipments!
Getting an Oscilloscope was always a dream for me, because I know they are expensive and I can not afford it, but now I can see a hope, that I may win this one and have it delivered to me for free! still sounds like a dream!
Thanks Dave for the wonderful blog! I never get tired of your videos!
Azhar - Melbourne
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because I know they are expensive and I can not afford it
Azhar - Melbourne
This one wasn't.
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Wow, what a deal, Dave you are the top dog!
I would love to win this scope, I've never been able to find anything greater than $200 on ebay and I'm looking to add a scope to my workshop bench that I am trying to put together at home. I love taking apart things and seeing how they work and that's why I'm an electrical engineering student with University of Queensland. Once I get a scope my next challenge will be to build a powersupply, maybe even take the open hardware uSupply and improve it and give further to the community.
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hey dave ive been watching you eevblog youtube videos for the last year has really inspired me to do electrical engineering which i hope to get into at QUT Brisbane, ive been playing with electronics since i can remember, when i was 8 i got for my birthday Funway to electronics vol 1 from dick smith and started from there buy age 11 got my first soldering iron, and ever since been repair and fixing devices, now i want to start getting into more serious electronics and start learning more complex circuits, and i guess an oscilloscope is one of those major tools ill need to my workbench, hehe, cheers for the videos
TOM
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I think the scope should go to someone who is less than 22 years of age, in school (primary or uni), and entering into the field of electronics engineering. It could possibly make a difference in their education.
Just my two cents.
Good luck to the winner!
Chris
Another great video Dave!
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G'day Dave,
I am in my first year of electronics engineering, have been doing electronics as a hobby for about 10 years, and have been following the EEVblog for over 2 years.
Currently I am in to 2 sorts of projects, guitar effects and digital sensors for a project i am working on. Having a scope would greatly improve my ability to see how my circuitry is effecting the guitar signal with the pedal I make and dial in my circuitry to try and get a specific waveform and sound. It would also help a lot in my digital electronics projects, in particular the sensors that I am making at the moment. Being able to tap into the circuit and see how it is reacting and be able to use the information to improve the design would help greatly.
My current project is a sensor unit for a automated gardening system I am making. Involving soil moisture, salinity, ambient environment details such as temp, rain, humidity etc. Being able to see how my sensor designs are reacting to the various concentrations and levels with more than a multimeter would be Invaluable.
Cheers,
Jesse
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The vernier control on No.2 might be rotated a bit to get access to the grub screw so that a long allen key or screw driver could be used to tighten it, the No.1 is obviously just about grabbing so a spot of loctite on the shaft might do the trick. Just a thought and could be worth a try.
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I expect this has already gone elsewhere?
If not, I would definitely give it a good home.
I lost all my test gear in the 2011 floods (QLD), along with everything else.
The gutters on my house were the high water line, (Maybe half a bee's d... of mud on the edge of the roofing tin).
Still not fully recovered.
Didn't have much test gear, am just a hobbyist, but I did have a 10Mhz single channel scope.
Not the best, but far better than the old TV I'm using now...
(Drive the horizontal yoke from a variable frequency sawtooth generator, and signal to the vertical.)
Most definitely happy to pay for shipping if someone else isn't getting this.
Although, dcel's comment is a good idea...
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The scope has some conceptual resemblance to an 80s Philips scope that I have. In essence an analog scope with digital capabilities similar to this hamag one. All digital functionality is on one board slapped to the side, mostly 74xx circuitry.
Memory depth ( or shallowness) is similar. Just enough to do a full capture of one screen of signal.
There might be some nostalgia surrounding it, but in essence these are still very usable these days.
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Thank you Dave for your great videos, and for giving me hope to continue doing what i love,
I'm an EE student in Egypt, i loved electronics since i was about 11 years old, and it is great to watch Dave's videos and learn from them,
i wish i could get an oscilloscope for even less than $200 in here, there aren't too many people interested in electronics over here, i have never even found one used anywhere or even broken down on a flea market to fix,
you may not believe that in the whole country there is no decent electronics parts supplier anywhere, and where i am there is only one small shop that only sells components for household electronics repair mostly discreet components at least 15 years old technology, mostly all of the projects i have built are from components i taken out from broken down stuff any type of pcb i find in a flea market i try to buy to take components from to use in a future project that is because there is no alternative
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I wonder how much the shipping would be to the UK?
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Nice video.
However, you were looking for a “broken scope” but could not be bothered to fix the two vernier controls. I know their pain to get to, and it is fair to say that those controls are seldom used, but gee not all fixes are the nicely socketed component on the top. I vote for you getting arm deep in the guts of the analog section and fixing the vernier’s before shipping to some lucky person.
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Nice video.
I think I was destined to work with electronics ever since a very young child... I remember my mum telling me that when I was about 3 years old she found me pulling apart one of my toys and she asked what I was doing and I told her that I was seeing how it worked... I then moved onto the DSE Funway 1 Kit at about 8-10yrs old when my parents bought it for me. Ever since then I would always pull apart broken electronic things to see how they worked and see if I could work out how to repair them...
Our first child was stillborn at 38 weeks gestation 3 months ago, and since then I decided life is too short and I want to spend more time doing things I enjoy so I have recently started getting back into electronics as a serious hobby so very slowly building up my equipment and oscilloscopes have been on my search list on eBay but I haven't found any suitable, so knowing this one has been checked out and is good to go by Dave would be awesome. Would be an awesome addition to my gear.
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Book a hotel at the belgian coast and give it to me! I don't know if you already visited Belgium?
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Book a hotel at the belgian coast and give it to me! I don't know if you already visited Belgium?
i'd be hiding in the dunes and pry it from your hands immediately after handover. >:D
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Well, this is worth a shot at least. Not really a sob story, just garden-variety poverty.
I've been interested in electronics for the majority of my life, as a kid (3, 4, 5 years old) I would take apart anything that I could find around the house that plugged into a wall. My parents eventually realised this wasn't a terrible thing, and started giving me old, broken electronics to tear apart rather than the functional ones around the house. Fast forward a few years, and I started on the old dick smith fun way series (using mainly recycled parts, great when you only partially understand resistor labelling and so on) - so I never had a whole lot of success.
A family friend got me an old dick smith multimeter when I was about 10 or 11 and that was when I really started to successfully create stuff. Ever since, I've retained this interest, but went down a different path after getting out of school (graphics design) since the idea of studying engineering for years scared the crap out of me. About 2 years ago I discovered how amazingly useful sites like RS and Ebay are, and that parts weren't nearly as impossible as I thought to source around here. Since then I've been learning pcb design and generally actually making things that work (well sometimes at least)
Recently I got together enough savings to get myself either a crappy scope, or a decent quality multimeter. I went for the meter as it was necessary for the course I'm studying at tech and I felt it was a better investment than getting something I'd want to replace in a short time.
I've really wanted a scope to add to my tool set for a long time now, but the need for one is increasing every day as I move to more and more complex projects.
I've wanted to get an old CRO off of ebay or trademe but had no success finding one that doesn't cost many times it's value just shipping it here. Trademe is an utter rip off, since people know the market here in nz doesn't have much choice but to pay what they ask.
I realise you did only want to ship to an aussie, but I thought it'd be worth asking anyway, I'd be happy to pay shipping to get it here, as it should be far less ridiculous than getting a scope on ebay sent from the states or uk.
If anyone living in nz has an old cheap/free scope they're looking to get rid of, please give me a message, you'd be helping me to build these skills I've been developing for my whole life far more quickly (and hopefully give a better understanding too)
peace all
chris
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With both Y axis verniers failed in the same way, makes you wonder whether the shaft set screws were intentionally loosened to prevent inadvertent operation.
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Dave, thank you for that wonderful video!
Made me ignite my first scope after decades of resting in the basement.
It's a HAMEG HM 412, vintage 1981 or 1982, bought from my first salary.
And it's still working, even stable, after I have rotated and engaged every knob on that thing a few times!
I did not have the heart to throw it away, yet..
Frank
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Nice video, we have some of these at school. The pin-header on the back (17:35 in the video) can be used to connect a thermal printer. And I have some prints here if someone is interested here is a picture.
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I'd love to win this scope. I bought a Gabotronics Xprotolab a while back but quickly realized it was no substitute for a basic oscilloscope. Still, the xprotolab is a good frequency gen and protocol sniffer. Anyways, I have been looking around for scopes on ebay and can find some cheap ones. However the shipping always seems to drive it over the top. If I only had to pay shipping that would be another story. Good luck to all, hope the scope finds a good home! I'm mainly doing beginner electronics learning and so that would be a gem to own as my first "real" oscilloscope. I didn't watch the video yet, how do you enter the contest and what is the eligibility? I'm in Canada.
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I did not have the heart to throw it away, yet..
Frank
Shhhhhhh! It may hear you!
Alexander.
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I bought the HM203-7 for 190,-€ on ebay two years ago, it is almost identical except the storage part, which the HM203-7 not has. No it was not to expensive, mine is in an excellent condition and came with two new probes, all the money worth. These models have in x-y mode the horizontal input on channel 2, which you claimed as not correct in a DS2000 video. Here at least marked correct below the input connector. I don´t care as long as i know what is what. By the way, at the first model HM203, which i owned 30 years ago, was it the other way around.
At 5:40 in the video, i do not understand, why the time 5 vertikal amplifier would affect the analog bandwith of the scope, would highly appreciate, if you could go into details.
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I used to sell Hameg scopes and I have a soft spot for them. A no nonsense, well designed and laid out CRO. Hameg used to produce models that were specifically designed for specific roles such as television repair. Fine German Engineering. There are presently 8 Hameg CRO's of various models languishing in my garage. Some are in perfect working order and others are awaiting minor repairs. The last two that I purchased were two 100MHz models to keep up with my Rigol DS1052 DSO. I have worked on many oscilloscopes over the past 30 years and I still prefer the Hameg's for hobby use. My Tektronix CRO's don't see much use at all.
I have three of the HM205-x model plus three printers that sit underneath them. The output to the printer is an standard IDS ribbon connector and cable. Hameg used to sell a printer upgrade kit and all it consisted of was a back panel plate and a ribbon cable to bring the printer port on the main board out to the rear. The printer is a thermal 'bog roll' (4" wide) type. It produces a hardcopy of the stored screen. Before I had my Rigol DSO I used it for documenting waveforms around a circuit under investigation.
Buying a faulty Hameg for pennies (Cents) can make a very worthwhile project as they are easy to work on and the service manual is freely available from Hameg and on line. Sadly you often need an oscilloscope to repair an oscilloscope :palm: But a CRO or DSO may sometimes be borrowed for the purpose. HM-3xx series Hameg's were a little less reliable but I have two that have not given any problems.
The joy of analogue CRO's is that they still show you a time accurate display of a signal that exceeds the stated bandwidth so long as the trigger can cope, and these work well above the stated 20Mhz top end. Amplitude is no longer accurate but that is not always an issue. Square waves of any great frequency will always challenge a 20MHz CRO and rounded edges will result but 20 MHz is fine for many analogue sine wave applications.
Dave did well getting that scope for $19 but I am not that surprised as the world appears fixated with DSO's these days.
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Oh no, send it to Brazil! It is just not possible to get a scope like that for under around $350.00 here in Brazil.
How much would the shipping cost?
$266
Gee, that's a lot =/
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I think you should send it to me in the UK, surely the postage wouldn't be that much would it which I'd pay, my old D61A is getting tired , like me.
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Dave, if you can't find a needy student in Oz, I can pick the scope up in Perth and give it to one of the high schools in Mauritius, which are always short of equipment.
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Can someone explain to me how the component tester works? What is it plotting on the screen? At first I thought it was working like a rudimentary curve tracer but changing resistances shouldn't have changed the slope of the line so drastically. Any insight would be greatly appreciated.
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Looks like a very sensitive low-current curve tracer to me.
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Can someone explain to me how the component tester works? What is it plotting on the screen? At first I thought it was working like a rudimentary curve tracer but changing resistances shouldn't have changed the slope of the line so drastically. Any insight would be greatly appreciated.
The tester is probably similar to an Octopus Curve Tracer. W2AEW did a video about them. They're easy to make.
Simple Component Tester using Oscilloscope - Octopus Curve Tracer (https://www.youtube.com/watch?v=Gwo3pEH7hUE#)
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I'm pretty sure that the IC marked ADRCTR is for the address control and not A/D related.
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I made one of Alans , there really easy to make , sorted my junk box out in an afternoon, I put mine in an old Black*Star case, very useful device
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Why do you suppose they socketed the components?
Repairability?
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Book a hotel at the belgian coast and give it to me! I don't know if you already visited Belgium?
Please! Belgium is in central Europe, is it not? Our Ebays are full of scopes for very little money, there is really no need to ship one of the most common scopes half way round the globe.
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Hi Dave, You have established a new price point for oscilloscopes: $0.95 / MHz. Cheers, Mark
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Can someone explain to me how the component tester works? What is it plotting on the screen? At first I thought it was working like a rudimentary curve tracer but changing resistances shouldn't have changed the slope of the line so drastically. Any insight would be greatly appreciated.
The tester is probably similar to an Octopus Curve Tracer. W2AEW did a video about them. They're easy to make.
Simple Component Tester using Oscilloscope - Octopus Curve Tracer (https://www.youtube.com/watch?v=Gwo3pEH7hUE#)
Awesome, thanks for the video.
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Funny video.
At this price, we even want to buy in Australia from EU.
Repair switches is certainly not the way is should be done. All dirt stays inside this way. Could be only a short term solution.
Vernier still does not work.
Ok, there is more work, and that why it's only 19$. Personally, I would try to get a simpler (older) model, even at a bit higher price,
as a reliable dependable starters scope.
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Brings back memories, used to use that model when i was at college :), liked the modular base units we had as well, where you could get power supply , function generator, multi meter and frequency counter modules.
It always amazes me how cheap they can be had in the uk, picked up a hameg 406 for under £50 inc. postage last year :-+ to replace my currently broken tek 466.
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Hi Dave, You have established a new price point for oscilloscopes: $0.95 / MHz. Cheers, Mark
I do not understand all the exitement (but I have not looked the video, I unserstand from the topic its an old analog low BW Hameg, if not then forget my rant ;)
Here in Holland a rather normal price for analog scopes is around 1 euro/MHz upto 3 euro/MHz for a more special one. (but real special scopers can do more) A 10 or 20 MHz can easy be bought under 50 euro.
Scopes I got offered for free the last 5 years: two 1 GHz Philips sample scopes (dead, fixed one, kept the other for spares), a Tek 547 (prime condition), 2 x 545 (one dead, HV transformer, the other given away in unkown condition), 546 (given away), 2 x 535, 453 (in perfect shape, resqued from scrapping because nobody wanted it after 2 weeks of adbvertising it for free), a dead 465 (fixed and gave away, a Philips 75 MHz (perfect shape, gave away), a Hameg mini scope from the 60' s (in my collection), a Thandar 10 MHz miniscope (use it on hollydays), a Fairchild 777 (dead and no manuals), two old Philips scopes from the 50's (traded to a 1948 multimeter), a tele-equipment (gave it away) and I probably forget some more.
Bought a HP1740 100 MHz with probes for 100 euro (gave it to a friend), a Tek 7704 and 7603 together 125 euro (still use them), a 2445 for 125 euro (gave it to a student)
The most expensive per MHz was a Tek 212, that was 80 euro/MHz ( 40 euro for a 500kHz scope ;-)
I have enough scopes but still get them offered, sadly had to turn down about 6 scope offered this year. I know two Tek mainframe scopes with 5 plugins that are trashed by the owner about a week ago, no interest after a week advertising them for free pickup. I know about a 535A, a 545, a 546 that are scrapped because of the same reason.
So there seems to be a strange thing going on, on the one hand people who want to get rid of there sopes for nothing but can not find candidates or ask little money . And on the other hand lots of people who want to spend 50-200 dollar for scopes the other owners can not get rid of for less as 50 dollar or even for free. I think both do not look at the right place (I think most must learn to look at other places as epay with the extreme prices because many buyers are just addicted to gamblin and are dying to " win" everything many other people are interested in, the attract each other like bees >:D )
By the way, do not mail me, I have no scopes at the moment to give away and I am not planning to make a list or so ;)
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BW of a scope is only one simple factor determining scope price. Reliability, serviceability, sensitivity, sync performance,
time base features are also of prime influence.
PA4TIM has made it a personal statement to advertise 1 Eur/MHz , which has no correlation with local marker prices
as I observed over a number of years in NL. If you search for actual sales on ebat.de (compatable market) of the 203 model in the past moths, the average price is l60-70 Eur, which is more than 3 times the stated EUR/Mhz.
If you want believe in fairy tails, enjoy!
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Fairytales ? In that case I believe in fairytales (but I do not believe in other fairytales like special audio resistors and caps :-DD ) My experience with scopes is far below 1 Euro/MHz. But if I am right who you are you also know from CO the rest of the story. (why and under which condition) And I allways write 1 euro/MHz upto 3 euro/MHz (and, no, this price is not for the ebay junkies, they just make each other nuts in the heat of the fight by bidding and forget the real world)
But for those who want a perfect working scope in mint condition withe the warranty that it will run for ever, just forget that price and believe in other fairytales ;-)
I know my " guidline", (not rule)it is not for every country . The point I try to make is that there are plenty cheap and free scopes around, for most if you forget ebay. (I think my list was prove enough)
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Part of the "challenge" of living in AU is that there's not a huge number of places that'd use and eventually upgrade/replace their equipment, so the kind of opportunity that the EU and US are given, by having copious numbers of used, decent scopes on the 2nd hand market, or even being offered them for free, just doesn't happen. You have to be pretty vigilant to find something like this in AU, which obviously I am not !
Dave, my bleeding heart story. Well, I reckon I don't think my story will hold anything to the earlier post about the QLD floods, so I vote for that guy! (and in fact, the only thing I would hope that having a scope like this would get me is sympathy from SWMBO so the seeds I've planted about spending several hundred bucks on a new Rigol DS-2072 scope could sprout, and I'd get approval to head to Emona and pick it up :) )
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Hello again!
I mentioned yesterday that I would love to have this scope and at night I had a dream that I won it! OMG! I need it so much! If I really win it I will print your EEVBlog photos with the word "Thank you" and stick it on it as an appriciation!
please send it to me to Mebourne
I'm studying engineering at RMIT
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Hey Dave
Been into Electronics For About 10 odd years now and have always drempt about getting a scope i have played with many scopes but never ever been able too afford one until now when i saw on your channel that you can get them so cheap but yes having that scope on my workbench would be the best thing ever ive just started getting into arduino stuff having a ball there so a scope on my bench would make a valuable addition..
Dale.
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I am still looking out for a scope like this in New Zealand, Not many cheapies around anymore.
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Hi Dave,
Not sure if it has gone yet.. but.. I would love to add a scope to my growing beginners kit. I am doing Electrical Engineering at Mt Druitt TAFE and currently working in the power industry so I don't have a lot of? use for a CRO for 11kV!
I am starting electronics at home and my first project is a LAB Power Supply which I am working on a design to replace the LT3080 :-) Forum Topic (https://www.eevblog.com/forum/projects/lab-power-supply-18417/msg268393/#msg268393). I have also built an 8x8x8 LED cube that keeps "blowing" LEDS and turning them into resistors!! AAAGGGGHHH A scope would be great to help fault find :-/O !
I am in Lithgow NSW but could pick it up on TAFE afternoon! :-+
Thanks Mate
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Not 100% the same, but close enough:
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Hi there,
this great video by Dave was the point to regsiter to this forum. So this is my first post. Please excuse me if my English is not perfect. As a German guy English is not my mother tounge, but i try my best.
This old Hameg scope brings back memories of my school, where I went to during my vocotional training and still go to for my advanced training. These scopes are standard equipment of many laboratories in my school.
I don't know if a part of our scopes uses the rear expansion header for communication, but we have these scopes connected to a quite crusty RS-232 interface to transfer curve data to a Windows 98 computer. Acquiring data only works in store mode, but in the end we have an Excel sheet with nearly scope like screenshot as chart.
It's a very nice way for documentation of measurements and putting them to a thumb drive and review them at home.
Some scopes have a home brew modification for storage depth magnification x10 for faster signals.
Theses educational scopes are horrible to use if you are accoustomed to work with Tektronix TDS3054 series and better scopes at work. ;)
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Hi Dave,
That little beauty would take pride of place on my bench. Right next to my Tricky Dicky voltmeter. I'm building a better remote controlled lawn mower and want to create it with monitoring / edge sensor system, so it can auto mow the lawn or just not run off the retainer wall into the neighbor's car. My first mower attempt is likely finish the job I stuffed up and make me a para to a quadriplegic if don't get around to MK II :). I'd be lying if I haven't wanted, no lusted over of a scope since I first found your channel a couple of years ago.
Catch ya.
Adam
(Maitland - Hunter Valley)
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Well, if anything the thought of a free, cheap scope has caused several people to register as forum members.
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Looking at the video around 34:38, the resistor at R2253 (top left, between switch and pot) looks like one of the leads is snapped off.
If it is, it didn't seem to make a lot of difference :-)
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Well, if anything the thought of a free, cheap scope has caused several people to register as forum members.
.. although they most likely were lurkers or viewers already.
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Looking at the video around 34:38, the resistor at R2253 (top left, between switch and pot) looks like one of the leads is snapped off.
It is actually 2 resistors, one soldered on top of the other. You see the same with R2153 at the other pot below.
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A not so great feature of this generation scopes is that they use trim pot's as adjustment pot's (Y-vernier fe.). Wears out soon, and not as easy to replace as Dave discovered. In my experience, Auto triggering is weak, can be quite annoying if you know Tektronix. In general very reliable though, no other obvious weak points, very nice sharp focused trace (much better than most Tek's). Indeed low noise, and sensitive. Free schematics, good user manual.
Bought one new in early 80's as a student (203-5, no memory, EUR 550), still like it.
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I agree, the scopes aren't worth all that much and they are common. The main probem is shipping weight and international brokerage fees. I tried eBay and noticed the bidding wars (automatic bidding near end of auction) and didn't want to overpay. However, the winner ended up winning at $20 for a local pickup, for 20Mhz tektronix, and another was $100 for an Iwatsu 200Mhz.
I have looked at local ads because ebay can have some crazy people who put in crazy auto bids... Let them have it. Locals on kijiji or craigslist have narrowed me down to a 50Mhz for $50 including probes and manuals Tektronix. I'll know in a few days if I have it or not!
Hi Dave, You have established a new price point for oscilloscopes: $0.95 / MHz. Cheers, Mark
I do not understand all the exitement (but I have not looked the video, I unserstand from the topic its an old analog low BW Hameg, if not then forget my rant ;)
Here in Holland a rather normal price for analog scopes is around 1 euro/MHz upto 3 euro/MHz for a more special one. (but real special scopers can do more) A 10 or 20 MHz can easy be bought under 50 euro.
Scopes I got offered for free the last 5 years: two 1 GHz Philips sample scopes (dead, fixed one, kept the other for spares), a Tek 547 (prime condition), 2 x 545 (one dead, HV transformer, the other given away in unkown condition), 546 (given away), 2 x 535, 453 (in perfect shape, resqued from scrapping because nobody wanted it after 2 weeks of adbvertising it for free), a dead 465 (fixed and gave away, a Philips 75 MHz (perfect shape, gave away), a Hameg mini scope from the 60' s (in my collection), a Thandar 10 MHz miniscope (use it on hollydays), a Fairchild 777 (dead and no manuals), two old Philips scopes from the 50's (traded to a 1948 multimeter), a tele-equipment (gave it away) and I probably forget some more.
Bought a HP1740 100 MHz with probes for 100 euro (gave it to a friend), a Tek 7704 and 7603 together 125 euro (still use them), a 2445 for 125 euro (gave it to a student)
The most expensive per MHz was a Tek 212, that was 80 euro/MHz ( 40 euro for a 500kHz scope ;-)
I have enough scopes but still get them offered, sadly had to turn down about 6 scope offered this year. I know two Tek mainframe scopes with 5 plugins that are trashed by the owner about a week ago, no interest after a week advertising them for free pickup. I know about a 535A, a 545, a 546 that are scrapped because of the same reason.
So there seems to be a strange thing going on, on the one hand people who want to get rid of there sopes for nothing but can not find candidates or ask little money . And on the other hand lots of people who want to spend 50-200 dollar for scopes the other owners can not get rid of for less as 50 dollar or even for free. I think both do not look at the right place (I think most must learn to look at other places as epay with the extreme prices because many buyers are just addicted to gamblin and are dying to " win" everything many other people are interested in, the attract each other like bees >:D )
By the way, do not mail me, I have no scopes at the moment to give away and I am not planning to make a list or so ;)
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This is a very good video. It's an adventure (not that the others aren't) but it is a basic look into what you might expect when looking into a used piece of equipment and a good look at the technology and manufacturing methods of years gone by.
A+
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Well mate,
it already took me ages to get all creative on my username and now I will have to try to find a good reason why you should send this analog voltmeter with a time axis to the Gold Coast. Hmm, suppose it is not enough to tell you that sending an oscilloscope to the Goldie would be like sending a dog into the orbit - hmm, someone did that already right?
Anyway, being surrounded by the surf and a lot of fantastic plastic with blond hair it seems odd to be interested in Physics and Electronics and somewhat lonely.
Conversations with my mates seem to only last for a few minutes if not seconds if I start telling them what I did on the weekends and oscilloscope just doesn't sound quite as cool as stories about ripping through waves.
But who needs a wave if you have an oscilloscope right? Electrons do a pretty good job too I thought! And my work bench is more of a table at the moment since there is only a soldering iron and a DMM on it so *Ze German* would be a great addition to it.
Guess I am left H oping A M agnificent E lectronic G adget will knock at my door and make my table a work bench!
That's me I guess...bzzzt....bzzzt...over and out....bzzzzzt....more interference sound.....
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Hey Dave, would be nice to have this German Beauty sitting here in Germany. :)
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Dave,
i'd love to own a scope so i can learn and 'see' what electricity is doing more the just reading voltage with a multimeter but i hesitate to ask because i/m sure theres someone here who needs it more then me, so cograts to who ever wins this :)
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LOL I love these scopes, I did a lot of lab work on these (or a similar model) at the university. We even used the heat printer output, it's fun. Like riding a steam locomotive or reading by an oil lamp. :P
I'm out for one, too bad I don't live in Australia. XD Honestly, it seems almost better than a new low-end DSO, as you get a real analog scope, plus the ability to do one-off measurements...
As for prices, on Craigslist, here in NYC you can get anything household-related for a ridiculously low price (microwave for $20, pro salon hairdryer for $5, etc.), but tools are either absent or command almost the price you'd pay at a shop (most of the ads ARE from shops, lol).
I wonder if there's a local alternative to eBay. :) On eBay these (and some older, non-storage Hamegs) go around $100 in working condition, but often without probes. Does that sound like a good deal? Is there another brand of good analogs with storage to look out for? (The ones that actually have "storage" in the listing title are usually overpriced.)
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Just in case someone also has a Hameg 205-3 at home. I did some investigation on the wired header at the back of it and it turned out that you can read the data from the digital storage as Dave supposed. However, I build a small board and wrote some software for it. Works quite well and I used it alot before buying a more recent scope. Here is all the stuff: http://www.mikrocontroller.net/topic/188035 (http://www.mikrocontroller.net/topic/188035)
The latest version is this post: http://www.mikrocontroller.net/topic/188035#2274849 (http://www.mikrocontroller.net/topic/188035#2274849)
English manual: http://www.akh.se/hameg/hmosc/hm205-3-man.pdf (http://www.akh.se/hameg/hmosc/hm205-3-man.pdf)
Sorry, most of it is in German, but you don't need to understand German for understanding source code and schematics ;)
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Hi,
just wanted to emphasize again that getting a scope is really dependent on your location.
For example, some germans (though not me) go berserk for a scope, check here: http://www.ebay.de/itm/HAMEG-Digital-Speicheroszilloskop-Oszilloskop-HM205-3-Scope-/281146635150?pt=Mess_Pr%C3%BCftechnik&hash=item4175a5338e&autorefresh=true (http://www.ebay.de/itm/HAMEG-Digital-Speicheroszilloskop-Oszilloskop-HM205-3-Scope-/281146635150?pt=Mess_Pr%C3%BCftechnik&hash=item4175a5338e&autorefresh=true)
Exactly the same scope, ok, seems to work, but 300€ (about 360$) for 20MHz? Just crazy.
Yesterday i paid 150€ for a Tek 475 with faulty second timebase and minor scratches, but new crt and knobs (think i'm equipped to fix that). That's ten times the bandwidth (or more, i will check that) for half the price. Seller was a nice guy, i will probably stay in contact with him (seems to be a Tek collecter, so lots of spare parts in case of problems).
If you watch ebay.de for scopes, you can really see strange things happen:
- Tek 468 in good condition for 200€ fixed. 1 day before closing, seller dropped to 180€. Did not sell. Re-listed for auction.
- Tek 465 in working condition, auction ended at 101€. But two hours before initial end date. Can not prove this, since end date has changed, but i swear!
- Hameg HM1005 for 300€ fixed or offer. I tried 150€, no luck. Others also. Did not sell.
- The exact Hameg 205-3 seemed to have been sold by another seller few weeks earlier, see http://www.ebay.de/itm/HAMEG-Digital-Speicheroszilloskop-Oszilloskop-HM205-3-Scope-/330951631874?pt=Mess_Pr%C3%83%C2%BCftechnik&hash=item4d0e412402 (http://www.ebay.de/itm/HAMEG-Digital-Speicheroszilloskop-Oszilloskop-HM205-3-Scope-/330951631874?pt=Mess_Pr%C3%83%C2%BCftechnik&hash=item4d0e412402). Same text and images. Copy-paste or maybe did not fit the expactations of buyer/seller (price)?
- there is quite a huge price spread for these Hamegs at ebay. Ended auctions show anything between 50 and 300€. But in my opinion, 50 is enough for 20MHz. So be patient and don't let yourself go crazy after such a scope.
- at least german ebay also has local listings (that's where i got my 475; don't know about other countries, but surely there a similar markets). Even a Hameg 203-7 for 50€ there. But also some crazy people: 204-2 for 120€, another for 100€ VB (but doubt he will go below 80€), a 605 for 190€ VB (crazy), a 1005 for 250€ VB. What are they smoking?
- to clarify: there were also Hitachi V-660 offered for ~90€ starting bid, and they did sell for this (only one bidder). So why pay more than 100€ for 50-60MHz?
Well, i better stop, or i'll fall into rage. |O
So, greetings from germany.
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Simple answer.....Hameg are a well respected manufacturer. Now owned by Rohde & Schwarz !
I know this is a forum that concentrates on the Digital, rather than analogue, world so it is no surprise that people are derisory about 20MHz bandwidth as that is low where square waves are involved. A 20Mhz Hameg oscilloscope is a very capable machine and not everyone needs or wants a DSO or 100MHz bandwidth. Quality sells.
A product finds its true market value in auctions, so obviously the Hameg products have a following. As a side note, I have owned several Tektronix scopes. They are not my favourites and have all had reliability issues, especially the power supplies. They often use Custom Hybrid IC's that can lead to a write-off if they fail (and they do!). Nope, not my cup of tea at all. I have two languishing in the garage unused for years.
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A picture of my 'spare' scopes languishing in the garage is attached.
In the UK they don't achieve high enough prices on the used market to make it worth the time packing and shipping them. I don't think I will be in need of any more analogue scopes for the rest of my life !
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A picture of my 'spare' scopes languishing in the garage is attached.
LOL - how did you come to have all those scopes? :wtf:
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My first CRO was a HM204-1. I sold them as part of my Saturday job and the owner gave me discount on the scope and allowed me to pay in instalments.
1. I used that HM204 in my school years, through maritime college right up until around 4 years ago. It has served me well and is still in great shape.
2. About 4 years ago I was gifted three HM205-2 and -3 models. I used them in place of my HM204.
I bought three HM-205 thermal printers on e*ay as no one seemed to want them. GBP10 each !
3. Around 3 years ago I bought two 60MHz Hameg's, the HM604 and HM605 as the price was right. I wanted a little more bandwidth for digital work.
4. around 2 years ago I bought a Rigol DS1052E and upgraded it to 100MHz. I then searched for a 100MHz Hameg CRO to match specifications. I would always have an analogue scope as well as a DSO. I found two 100Mhz Hameg's , the HM1005 an the later HM1004-2. The 1004-2 cost me GBP100 and included a Tektronix 6022 current probe worth GBP100 to GBP200 on its own. Lots od probes came with it as well.
5. Over the years I have bought other Hameg scopes when they were the right price. I have a couple of mint mini single channel HM103's that are great for mobile work. They cost me GBP20 each and are really 'cute'. A 30MHz HM305 came along for peanuts and just needs a PSU repair so I bought that on a whim. I also gave a home to some HM203's and 204's. People appear to have become DSO mad and just get shot of their analogue scopes when the nice new and shiny DSO arrives. I benefit from that mentality as I pick up Hameg's and Tektronix scopes at bargain prices or in some cases free of charge. DSO's are all very well but I don't need to concern myself about whether the sampling rate is right on an analogue scope. WYSIWYG applies unless you push the limits of the specifications.
I have many (too many) oscilloscopes including many DSO's of various types and ages (including several Tektronix models). I am a Gemini star sign so like to always have 'one and a spare' ;D I also repair kit for the fun of it so I have accumulated a sizeable collection of kit over the years. I must have some 'Packrat' blood in me somewhere. I collect quality and not 'junk' though 8)
I will admit to buying a pile of faulty new Digimess (Grundig) CRO's though. They are single channel cheap Chinese crap for the education and hobby markets. Most had shattered tubes as the consignment had been dropped en-route from China. I paid GBP25 inc delivery, from Digimess UK, for eight of them ! Yes 8 scopes+postage for GBP25. I ordered tubes from China at GBP5 each inc delivery. I have not got round to fitting them yet. It was just a bit of fun for me to resurrect them. The scopes are only 10MHz but I am sure I can find a use for some of them even if it is just a dedicated component tester role.
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wow thats quite the collection, thanks for taking us down memory lane :) its a like looking at electronic porn lol
i wish it were so easy to get scopes here in australia at those sorts of prices, being on a disability pension from an accident i had a few years ago i have been searching for ages to find a scope that i can afford with my limited funds. im hoping to go back to uni and study electrical engineering in the soon future, perhaps i should be living in the UK, seems that scopes are practically free in a lot of cases over there....
Regards,
Matt
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Book a hotel at the belgian coast and give it to me! I don't know if you already visited Belgium?
Please! Belgium is in central Europe, is it not? Our Ebays are full of scopes for very little money, there is really no need to ship one of the most common scopes half way round the globe.
Can't comment for others europeans, but for me at least: English happen to be only foreign language that I know well enough to comfortably use Ebay. Unfortunately most of ebay.co.uk sales are local only (or **** priced delivery) ...
I have seen some nice goodies at Ebay.de but... :(
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really awesome intro into this advanced electronics stuff! I've been messing around with electronics my whole life, I made a latching relay when I was around 10 before I knew such a thing existed (Im 23 now) so i guess Ive been slacking lately...I've been looking at an oscilloscope lately after watching some of the eev blog videos to try and troubleshoot an Arduino DMX lighting controller im making
http://forum.arduino.cc/index.php?PHPSESSID=ucop5ht7q9i9ssq74g7au1u191&topic=145451.msg1298484#msg1298484 (http://forum.arduino.cc/index.php?PHPSESSID=ucop5ht7q9i9ssq74g7au1u191&topic=145451.msg1298484#msg1298484)
If you feel like sending the scope down to Adelaide, Id be super grateful, worth a shot.
Regards, Harry
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I think the scope should go to someone who is less than 22 years of age, in school (primary or uni), and entering into the field of electronics engineering. It could possibly make a difference in their education.
I agree.
So it seems that narrows it down to Azhar, tomo900, Cald0s, Joker94, wigman27
Did I miss anyone?
I should probably put names in a hat and draw one out on video.
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Maybe PM each of the finalists and ask them some questions about oscilloscope usage to see if they want it so bad that they've been doing research on their own etc.
Then decide? Dunno.
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Mini competition for the contestants, put their creativity to work. Some cool hardware project 555 timer style. Or just straight up live/videoed contest draw the usual way.
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Oh no, send it to Brazil! It is just not possible to get a scope like that for under around $350.00 here in Brazil.
Depending on where you live, you can score some in reasonable good shape for less than US$200.00 - check this MercadoLivre listing (http://lista.mercadolivre.com.br/agro-industria-comercio/oscilosc%C3%B3pio_ItemTypeID_U_PriceRange_95-950). Unfortunately it is not as cheap as in the US or other places, but anything foreign will shoot the price through the roof in shipping and taxes... :(
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So shipping only to Australia, am I right Dave? No Chance for us German People? ;)
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So shipping only to Australia, am I right Dave? No Chance for us German People? ;)
it'd be easier for you find one locally or in a neighbouring country. EU is epic for stuff.
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Yeah, but apparently analog oscilloscopes are ridicolously expensive here, especially the HAMEG ones
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Yeah, but apparently analog oscilloscopes are ridicolously expensive here, especially the HAMEG ones
I'm not very familiar with Australian Post prices, but I expect shipping of this scope to Germany to be at least $100. I see several recently completed listings on eBay.de that finished under €100 for working scopes. One even sold for €50 (http://www.ebay.de/itm/Hameg-Oscilloscope-HM305-/330991196243?pt=Mess_Pr%C3%BCftechnik&hash=item4d109cd853). Untested, but shows a trace. That's not ridiculously expensive in my book.
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Juts drew the winner of this scope out of the hat so to speak, video uploading now...
Hameg Oscilloscope Draw (https://www.youtube.com/watch?v=ZCwBj-EMIdE#)
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Congratulations Mr. Winner!
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Congrats Joker94! :clap:
(cat let out of bag)
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(obsolete: Hey, you're giving away the punchline.)
:-+
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Well done joker 94!!!!
I'm very happy I made the list!!
Thanks very much Dave for doing this! I'm back to studying power 1! Unbalanced star loads with open circuit neutrals!! Followed by circuit analysis! Fun fun fun!!
Glad to see your feeling better!
Lee
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Winner winner chicken dinner! :-+
Ok the requirement should be now that once he gets it he does a video for us.
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As per the top comment, currently with 40 votes.
1. Press Ctrl+U
2. Press Ctrl+F (Find)
3. Type og:image
4. Paste link into new tab
5. Say "Herp? Derp"
For those who don't get it, this shows the video thumbnail, typically one frame from the perfect middle of the video unless the vide owner changes it. People who get e-mail notifications for uploads are greeted with a bigger version of the thumbnail than those who just get it in their feed.
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Dave needs a shave there........... ;)
Amazing it looks clean on the medium 640x480 video. Too bad Hellkom does not do anything above a 1M line for anything approaching a sane price.
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Still can't believe it, having a scope will bring some old projects back now I can properly debug them and of course will be extremely useful with some new projects.
Once again I am extremely appreciative, thanks Dave!
Winner winner chicken dinner! :-+
Ok the requirement should be now that once he gets it he does a video for us.
I'll give that a shot, I have never done a youtube video before, and I have a couple of projects that would suit.
Cheers,
Joker94
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I'll give that a shot, I have never done a youtube video before, and I have a couple of projects that would suit.
Cheers,
Joker94
Congratulations Joker94! Happy for you :)
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Thanks again Dave!
Get home this afternoon after a 4 hour physics prac to find t waiting for me, very excited and cannot wait to put it to use!
Cheers,
Joker94
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Get home this afternoon after a 4 hour physics prac to find t waiting for me, very excited and cannot wait to put it to use!
You've got no bench space left!
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When i get my act together and clear my gear and work area up it will slot right in. Now I have reason to clear my gear up!
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This is possibly the best video I've seen so far Dave, awesome! I just love old analog stuff. I shall relate my tiresome tale:
A few years ago, I was gifted an analog scope (trash-found originally from a college here in Toronto, Canada), Philips model PM-3200 (1969 vintage) and I plugged it in and it sort of worked, blurry as hell, unreadable bah.
So, armed only with ohm's law and a few tools I took it apart one day just to see what was up. I used the hfe checker on my multimeter (I know you say they are useless, but I used it as a pass/fail) to test all the transistors inside (which were helpfully mounted in plug sockets). Identified a few dead ones, popped down to the shops, grabbed off the shelf replacements, slapped 'em in and blammo! It works.
Not perfect of course, spent about a week calibrating it and it's still a bit off but for a novice like me it's a godsend, use it all the time!
I especially like your point about safety - there's some narsty voltages inside CRTs and I nearly killed myself but was saved by my insulated multimeter probes which had accidentally contacted a -1500V rail boo! Still have a nice melt mark on the probe to remind be - be really, really careful.