Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1515852 times)

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Offline Specmaster

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Who let Murphy in?
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2801 on: October 15, 2017, 02:04:44 am »
I was using a manual pump. If you’ve got a proper rework iron you should be fine. Need to get one of them actually. eBay time! :)

Good luck with the transistors!


Heres a link to the same one that I got but the prices have shot up since Dave did review of them, most are around the £130 mark now  :(

http://www.ebay.co.uk/itm/Duratool-D00672-Desoldering-Station-UK-EU-PLUG-80W-1-Year-UK-Guarantee-/172909651800?epid=2256177827&hash=item284237e758:g:p3IAAOSwRkRZ13pr
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2802 on: October 15, 2017, 02:54:55 am »
That switch should work actually in that situation. Worst case, you know which ones won't work in the future :D

Soldering iron thoughts are moving towards something new and Hakko now.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2803 on: October 15, 2017, 03:47:03 am »
I think its just a case of pulling the bent link out from the top, one end of which sits under the coil spring, soon find out anyway. :-+
Who let Murphy in?
 

Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2804 on: October 15, 2017, 03:56:59 am »

In fact I have two of those. Yes, the plastics are kinda shitty on this one (well, not just on this one; although I have a sweet spot for Philips, they must have owned a plastics factory once: for a while, they produced more cracking plastics than electronics).
I'm from Germany, but that's of no consequence, as you're certainly joking - asking me if I'd part with test equipment ...  :-DD

I must admit that these are not my first devices. When I learned that I might get these, I started looking for manuals and repair advice. That was when I discovered EEVblog and this very thread. I immediately knew I had to sign up.
Before this haul I already owned about a dozen DMMs, 8 oscilloscopes, some analog meters, a frequency counter, and components galore (I collect them as well).

I've never been a RF guy, but suddenly I start yearning for a SA. This thread is no good. Must stay away from it.
Nope, on this occasion I wasnt joking, I love the accuracy of the meter but get infuriated sometimes when I have to reboot it so many times to get into the start up routine.

Even without the massive haul from work, (and I get the distinct impression that there may be more to come?) you are very welcome here as you already clearly have TEA even if you say that you must stay away from it, you already know that resistance is futile.

Like you I have 10 DMMs, 4 AMMs, 6 oscilloscopes (2 more being worked on) 1 function gen, 1 RF generator and another being worked on, 2 LCR and ESR meters, 1 VVTM and 2 bench PSUs in my collection.

I don't use it all that often. As a bench meter, I prefer the LEDs of my Siemens B1041 and like the handiness of my Fluke 8060A.

Today I built a shelf onto my workbench so I can hopefully stack more equipment there. Cost me most of the day. And looks terrible (I'm no good with mechanical work). It doesn't help that I made it out of several older pieces of furniture (of course I wouldn't throw away perfectly good wooden boards, would I?). But then, I already added a board to make it deeper by 20 cm, so the visual appearance couldn't be ruined anymore, anyway. And I don't bother as long as it does its job.

Over the past weeks I also carried some smaller items home (don't have a car), like some panel meters. Yesterday I replaced two caps in a Weston 1234 (they had been replaced before), and now have a nice 4.5 digits Panaplex meter. Needs some calibration, though, and I couldn't find anything resembling a manual.
 

Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2805 on: October 15, 2017, 04:09:03 am »
I must admit that these are not my first devices. When I learned that I might get these, I started looking for manuals and repair advice. That was when I discovered EEVblog and this very thread. I immediately knew I had to sign up.
Before this haul I already owned about a dozen DMMs, 8 oscilloscopes, some analog meters, a frequency counter, and components galore (I collect them as well).

I've never been a RF guy, but suddenly I start yearning for a SA. This thread is no good. Must stay away from it.

Welcome, Ero-Shan! Congrats on that haul. Even if they're all broken, that's quite a score. The bad news is that you already have TEA. "Normal" people wouldn't have brought it all home. The good news is that we think that's totally OK. ;D

Somehow I knew you'd say that.  :)

Alas, I'm no match when it comes to repairs to almost anybody on this site. I don't even get them cleaned up like you do. My vacuum cleaner doesn't suck strong enough, and I wont desolder ICs just to clean underneath them.  ;D
Until lately, I didn't care too much whether the stuff worked, as long as I had one working part. But since reading here I'm eager to get the whole enchilada into working condition, along with a dignified appearance.
 

Offline guido

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2806 on: October 15, 2017, 04:16:04 am »
Over the past weeks I also carried some smaller items home (don't have a car), like some panel meters. Yesterday I replaced two caps in a Weston 1234 (they had been replaced before), and now have a nice 4.5 digits Panaplex meter. Needs some calibration, though, and I couldn't find anything resembling a manual.

Then you will like the Data Precision even more.
 
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Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2807 on: October 15, 2017, 04:17:52 am »
Alas, I'm no match when it comes to repairs to almost anybody on this site. I don't even get them cleaned up like you do. My vacuum cleaner doesn't suck strong enough, and I wont desolder ICs just to clean underneath them.  ;D
Until lately, I didn't care too much whether the stuff worked, as long as I had one working part. But since reading here I'm eager to get the whole enchilada into working condition, along with a dignified appearance.

"And so it begins"   http://www.urbandictionary.com/define.php?term=%20And%20so%20it%20begins

Let us know your address before you are committed to the lunatic asylum.
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2808 on: October 15, 2017, 04:18:56 am »
But since reading here I'm eager to get the whole enchilada into working condition, along with a dignified appearance.

Excellent! Looking forward to seeing all the restored goodness. :-+
I TEA.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2809 on: October 15, 2017, 05:34:34 am »

In fact I have two of those. Yes, the plastics are kinda shitty on this one (well, not just on this one; although I have a sweet spot for Philips, they must have owned a plastics factory once: for a while, they produced more cracking plastics than electronics).
I'm from Germany, but that's of no consequence, as you're certainly joking - asking me if I'd part with test equipment ...  :-DD

I must admit that these are not my first devices. When I learned that I might get these, I started looking for manuals and repair advice. That was when I discovered EEVblog and this very thread. I immediately knew I had to sign up.
Before this haul I already owned about a dozen DMMs, 8 oscilloscopes, some analog meters, a frequency counter, and components galore (I collect them as well).

I've never been a RF guy, but suddenly I start yearning for a SA. This thread is no good. Must stay away from it.
Nope, on this occasion I wasnt joking, I love the accuracy of the meter but get infuriated sometimes when I have to reboot it so many times to get into the start up routine.

Even without the massive haul from work, (and I get the distinct impression that there may be more to come?) you are very welcome here as you already clearly have TEA even if you say that you must stay away from it, you already know that resistance is futile.

Like you I have 10 DMMs, 4 AMMs, 6 oscilloscopes (2 more being worked on) 1 function gen, 1 RF generator and another being worked on, 2 LCR and ESR meters, 1 VVTM and 2 bench PSUs in my collection.

I don't use it all that often. As a bench meter, I prefer the LEDs of my Siemens B1041 and like the handiness of my Fluke 8060A.

Today I built a shelf onto my workbench so I can hopefully stack more equipment there. Cost me most of the day. And looks terrible (I'm no good with mechanical work). It doesn't help that I made it out of several older pieces of furniture (of course I wouldn't throw away perfectly good wooden boards, would I?). But then, I already added a board to make it deeper by 20 cm, so the visual appearance couldn't be ruined anymore, anyway. And I don't bother as long as it does its job.

Over the past weeks I also carried some smaller items home (don't have a car), like some panel meters. Yesterday I replaced two caps in a Weston 1234 (they had been replaced before), and now have a nice 4.5 digits Panaplex meter. Needs some calibration, though, and I couldn't find anything resembling a manual.

Try this link for some assistance in your quest  :-+
http://blog.hendriklipka.de/archives/2013/11/calibrating_weston_1234_panel_meter.html
« Last Edit: October 15, 2017, 05:36:48 am by Specmaster »
Who let Murphy in?
 
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2810 on: October 15, 2017, 06:16:48 am »
That's a cool panel meter. I'll have to keep my eyes peeled for some. ;)
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2811 on: October 15, 2017, 06:21:05 am »
That is indeed. Heathkit made panaplex display clocks as well. Could probably sneak one of them in easier than more test gear :)

Ran out of power supplies earlier. May get another one. Ho ho ho :)
 

Offline neo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2812 on: October 15, 2017, 06:22:58 am »
Purely out of curiosity what would you suppose is wrong with scope?
http://www.ebay.com/itm/TEKTRONIX-7904-OSCILLOSCOPE-1165-/192310942875?_trksid=p2349526.m4383.l4275.c10  :popcorn:
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2813 on: October 15, 2017, 06:24:35 am »
That is indeed. Heathkit made panaplex display clocks as well. Could probably sneak one of them in easier than more test gear :)

Oh ho ho. Good idea.

Quote
Ran out of power supplies earlier. May get another one. Ho ho ho :)

Well, when you need one, you need one. Or two or three, so you're not caught short during the next project. >:D
I TEA.
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2814 on: October 15, 2017, 06:26:47 am »
Well that might be on the books because I can’t work out where to stick the power supply on the bench unless I buy two :)

That 7904 scope probably has a shot power supply. Unlike some other members of the 7000 series it’s a switching supply so a little more difficult to repair than the linear ones. I’d skip it.
 
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2815 on: October 15, 2017, 06:30:40 am »
Purely out of curiosity what would you suppose is wrong with scope?
http://www.ebay.com/itm/TEKTRONIX-7904-OSCILLOSCOPE-1165-/192310942875  :popcorn:

Based on the listing, I don't think you'll see much without modules for the vertical and timebase. What else could be wrong? Hard to say. If the high-voltage supply is bad, then the CRT will have problems. There may also be the typical issues with knobs, switches, etc. Otherwise, I'd expect potential problems similar to what you'd run into with Tek modular chassis: power supply, bad connectors in the slots, burnt components, etc.
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Offline neo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2816 on: October 15, 2017, 06:35:56 am »
Well that might be on the books because I can’t work out where to stick the power supply on the bench unless I buy two :)

That 7904 scope probably has a shot power supply. Unlike some other members of the 7000 series it’s a switching supply so a little more difficult to repair than the linear ones. I’d skip it.

What about this one?
http://www.ebay.com/itm/Tektronix-7904-500MHz-Analog-Oscilloscope-4-Slot-Mainframe-For-Parts-Repair-/311972020435?epid=96961633&hash=item48a2fb40d3:g:s88AAOSw0bxZqgFS

If you say that one deserves a skip as well you may well have saved me from myself for the time being
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2817 on: October 15, 2017, 07:00:50 am »
It says, "Please read full description for exact details on item condition." Yet, the description area is empty. So, anything could be wrong. Some knobs are broken or missing pieces, too. I'd skip it, but I've gotten much pickier over the years.
I TEA.
 

Offline neo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2818 on: October 15, 2017, 07:03:55 am »
It says, "Please read full description for exact details on item condition." Yet, the description area is empty. So, anything could be wrong. Some knobs are broken or missing pieces, too. I'd skip it, but I've gotten much pickier over the years.

On my end it says,
"We plugged this oscilloscope in and tried to power it on, but nothing would display on the screen. We heard some clicking sounds when the power switch was on, but the item showed no other signs of power. This oscilloscope will be sold AS-IS! No plug-ins included."
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2819 on: October 15, 2017, 07:06:49 am »
I'm sure I've used this video in this thread already. This is the guys who resell this sort of stuff at work:

 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2820 on: October 15, 2017, 07:16:59 am »
It says, "Please read full description for exact details on item condition." Yet, the description area is empty. So, anything could be wrong. Some knobs are broken or missing pieces, too. I'd skip it, but I've gotten much pickier over the years.

On my end it says,
"We plugged this oscilloscope in and tried to power it on, but nothing would display on the screen. We heard some clicking sounds when the power switch was on, but the item showed no other signs of power. This oscilloscope will be sold AS-IS! No plug-ins included."

It may be the switching power supply. But, since they don't state what plugins they used to test with, if any, nor the condition of any plugins, almost anything is possible. There could even be major components missing.

For me, if the scope can't show a trace, I wouldn't bother with it unless you already have some parts mules in your possession to help troubleshoot and swap bits with.
I TEA.
 
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Offline khs

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2821 on: October 15, 2017, 07:19:45 am »
I've removed all plugins of my 7904 and switched on.

At least one of the A or B channel select indicators should be illuminated. 

If all is dark, then it's bad.
 
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Offline neo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2822 on: October 15, 2017, 07:33:41 am »
I'll just go back to plan A, wait until i can afford a nice. Thanks for your opinions on them.
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2823 on: October 15, 2017, 07:42:56 am »
Anytime. This is the not-as-well-known part of TEA therapy -- determining not just what to buy, but also what not to. :-+
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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #2824 on: October 15, 2017, 07:48:05 am »
Alas, I'm no match when it comes to repairs to almost anybody on this site. I don't even get them cleaned up like you do. My vacuum cleaner doesn't suck strong enough, and I wont desolder ICs just to clean underneath them.  ;D
Until lately, I didn't care too much whether the stuff worked, as long as I had one working part. But since reading here I'm eager to get the whole enchilada into working condition, along with a dignified appearance.

"And so it begins"   http://www.urbandictionary.com/define.php?term=%20And%20so%20it%20begins

Let us know your address before you are committed to the lunatic asylum.



Jackson, et al stole that quote from Babylon5 a decade earlier; he's a shameless Bab5 fanboi, and Tolkein never actually wrote those words. UD is hardly a valid reference; more like Wikipedia for the "Jackass" crowd. ;)

That said... Dibs on his probe collection when the little men in white coats take him away...  :-/O

Heads up anyone thinking of getting a similar meter to bd139 theres a Kenwood DL-2051 going on Ebay in case you hadn't noticed (listed this morning) and here's the link: http://www.ebay.co.uk/itm/282692846303


Am I the only one who thinks that thing looks decidedly Protek?

That switch should work actually in that situation. Worst case, you know which ones won't work in the future :D

Soldering iron thoughts are moving towards something new and Hakko now.

If you're looking to get into the Hakko T12 unitized tip ecosystem on a budget, you can build a very good station with the generic OLED T12 controller and a set of T12 clone tips; just add your own 18-28V 3-4A power supply. You get approx 90% the performance of genuine Hakko for around $60-80 all up, PLUS you get motion-canceled sleep mode.

Folks will argue that the clone T12 tips don't last as long as the real Hakko tips, which is true. But you can buy a whole assortment of 10 pieces for less than one Hakko tip costs. Spend the money for genuine on a a fine cone and L-hook tip you'll use all the time; get the cheap ones for what you don't use all the time.

Just avoid the full kit with the "converted Hakko 907" handle like the pic below; every last one of those handles is an unmitigated POS that will have you HATING the whole station. Spend the money and piece it together separately with a FX-9501 handle or FM-2028 modular handle; whichever you prefer. Both work almost as well as my genuine Hakko handle. This vendor has a FX-9501 handle that's prewired for the motion-sensor used by the OLED T12 module; otherwise you'll have to wire in the one that comes with the module. They also have the T12 OLED Module at a fair price. My clone FX-9501 came from them.

I have this, Weller, Aoyue and Metcal on my bench since my FX-951 caught fire inside :o and the only one I like better is the Metcal, but I can't afford more than a few tips for that, even used. And the setup on the OLED T12 module is SO much easier to use, just more sensible than anything short of the old analog knob that it is a joy to use; changing temps and presets on the FX-951 was such a PITA I was actually GLAD when it died.  :P



I don't use it all that often. As a bench meter, I prefer the LEDs of my Siemens B1041 and like the handiness of my Fluke 8060A.

Today I built a shelf onto my workbench so I can hopefully stack more equipment there. Cost me most of the day. And looks terrible (I'm no good with mechanical work). It doesn't help that I made it out of several older pieces of furniture (of course I wouldn't throw away perfectly good wooden boards, would I?). But then, I already added a board to make it deeper by 20 cm, so the visual appearance couldn't be ruined anymore, anyway. And I don't bother as long as it does its job.

Over the past weeks I also carried some smaller items home (don't have a car), like some panel meters. Yesterday I replaced two caps in a Weston 1234 (they had been replaced before), and now have a nice 4.5 digits Panaplex meter. Needs some calibration, though, and I couldn't find anything resembling a manual.


I just redid the worktop of my main bench; a jobsite I was on down here they were tearing out a cashwrap with cultured marble top and I got a nice piece 92" x 29" to make the whole bench (two drafting tables side x side) into one contiguous surface.

1st pic is a typical day in the middle of 6 projects at once.  :palm:

2nd pic is EVERYTHING cleared off to make way for the marble and a planed 1 x 10 plank as a filler to get the full depth I needed. I don't think it was that empty even on the day I moved in. 

3rd pic is what it looked like about 30 minutes later... :-\ Yes, that is the handle of the 454 under there. ;)


mnem
You do NOT want to see what's BEHIND me...  :o
« Last Edit: October 15, 2017, 07:51:15 am by mnementh »
 


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