EEVblog Electronics Community Forum

EEVblog => EEVblog Specific => Topic started by: EEVblog on April 21, 2014, 11:37:02 pm

Title: EEVblog #606 - Mailbag
Post by: EEVblog on April 21, 2014, 11:37:02 pm
Dave flips the bird.
A 1970's Mattel car racing game.
Sex on a stick multimeter probes.
Sagan, Mrs EEVblog, and a whole lot more in today's Mailbag Monday

Bob Widlar poster: http://www.theamphour.com/a-widlar-poster-for-the-ages/ (http://www.theamphour.com/a-widlar-poster-for-the-ages/)
Easy EDA: http://easyeda.com/ (http://easyeda.com/)
Channel Engineer: https://www.youtube.com/user/channelengineer (https://www.youtube.com/user/channelengineer)
We Make Things: http://wemakethings.net/ (http://wemakethings.net/)
http://felitek.de/ (http://felitek.de/)
http://www.probemaster.com/ (http://www.probemaster.com/)

EEVblog #606 - Mailbag (https://www.youtube.com/watch?v=BXWbmODBvhI#ws)
Title: Re: EEVblog #606 - Mailbag
Post by: 8086 on April 21, 2014, 11:41:29 pm
Oh you absolute bastard, putting this up just as I'm going to bed!

Guess I will have to wait until after work tomorrow now...   :rant:
Title: Re: EEVblog #606 - Mailbag
Post by: TommyGunn on April 22, 2014, 12:45:01 am
Wow, Those probes are only $14.50

http://www.probemaster.com/product_info.php?cPath=2_36&products_id=296&CDpath=3 (http://www.probemaster.com/product_info.php?cPath=2_36&products_id=296&CDpath=3)

BUYING
Title: Re: EEVblog #606 - Mailbag
Post by: c4757p on April 22, 2014, 12:48:49 am
Wow, Those probes are only $14.50

http://www.probemaster.com/product_info.php?cPath=2_36&products_id=296&CDpath=3 (http://www.probemaster.com/product_info.php?cPath=2_36&products_id=296&CDpath=3)

BUYING

I don't think you want those, they're 2mm...

These (http://www.probemaster.com/product_info.php?cPath=2_12&products_id=198&CDpath=3) look like the standard 4mm ones.
Title: Re: EEVblog #606 - Mailbag
Post by: TommyGunn on April 22, 2014, 01:47:42 am

I don't think you want those, they're 2mm...

These (http://www.probemaster.com/product_info.php?cPath=2_12&products_id=198&CDpath=3) look like the standard 4mm ones.

yup. Thanks, good catch.
Title: Re: EEVblog #606 - Mailbag
Post by: Agent24 on April 22, 2014, 03:53:30 am
But what did the letter in the last package say? I can't sleep until I know...   :-//
Title: Re: EEVblog #606 - Mailbag
Post by: EEVblog on April 22, 2014, 03:59:04 am
But what did the letter in the last package say? I can't sleep until I know...   :-//

The veroboard one?
He forgot what they were fr and wanted to know if I could figure it out.
Title: Re: EEVblog #606 - Mailbag
Post by: miguelvp on April 22, 2014, 04:14:56 am
But what did the letter in the last package say? I can't sleep until I know...   :-//

Probably something like: this thing doesn't work what am I doing wrong?

Nevermind Dave answered it while I was typing :)
Title: Re: EEVblog #606 - Mailbag
Post by: 99tito99 on April 22, 2014, 04:26:39 am
Mr. Jones you better watch out, you might lose your job; you had a couple of co-hosts that could garner higher ratings.
Title: Re: EEVblog #606 - Mailbag
Post by: Lightages on April 22, 2014, 06:40:55 am
Many thanks to the whole family for sharing their time with us. Before anyone starts complaining about the family being involved here, too bad! I enjoyed it and it is nice to see a happy family. I don't usually comment on videos here but I want to make sure that you, Dave, are sure that I appreciate the more personal touch here.
Title: Re: EEVblog #606 - Mailbag
Post by: Impulse on April 22, 2014, 09:00:26 am
I played the Mattel Auto Race game for hours on end when it first came to our local radio electronics stores.

No offense (offence?), but Dave got the game's goal wrong.
The player's goal is to pass as many cars as possible in the 99 second time limit.
By not hitting other cars, the player's car moves forward until it gets to the top of the "screen".
Then, the next lap occurs, with the other cars coming faster and faster.

The player is rewarded with great fanfare upon success.

I didn't know it back then, but according to Wikipedia, the game that Dave has is considered rare in working condition...potentially the first handheld, all-digital electronic game.

This game is described in more detail there:
http://en.wikipedia.org/wiki/Mattel_Auto_Race (http://en.wikipedia.org/wiki/Mattel_Auto_Race)

Oh, to be young again.
Title: Re: EEVblog #606 - Mailbag
Post by: vk3yedotcom on April 22, 2014, 11:26:07 am
Loved the cordless phone.

Old school analogue FM, crystal control.

Looks like a 30 / 39 MHz or similar - the older ones used 30 / 1.7 MHz.

No scrambling/encryption.

Transmitter on the right / superhet receiver on the left (maybe using a CA3089 or similar?).

Bit curious about the 3 position switch on the handset. Was thinking it's a channel change but there's not enough crystals for that.

So it looks like a single channel - if your neighbours had one you'd probably overhear all their calls.
Title: Re: EEVblog #606 - Mailbag
Post by: Excavatoree on April 22, 2014, 12:42:34 pm
That game brought back memories of the fourth grade, when everyone wanted one of those "led blip" games.  The most popular was "football. (US)"   The "cool teacher" was playing one during recess duty. 

When one bought a piece of crap electronic item back then, one at least got a Nichicon cap!

Sagan's only three (almost) and I can already see "father and son" blogs in the future.  It was nice to see Sagan and "The missus" in a mailbag blog.  You're a lucky man, Dave.

Title: Re: EEVblog #606 - Mailbag
Post by: EEVblog on April 22, 2014, 12:53:06 pm
Many thanks to the whole family for sharing their time with us. Before anyone starts complaining about the family being involved here, too bad! I enjoyed it and it is nice to see a happy family. I don't usually comment on videos here but I want to make sure that you, Dave, are sure that I appreciate the more personal touch here.

Thanks.
They happened to drop by, so just seemed fun to include them.
Title: Re: EEVblog #606 - Mailbag
Post by: EEVblog on April 22, 2014, 12:56:37 pm
I didn't know it back then, but according to Wikipedia, the game that Dave has is considered rare in working condition...potentially the first handheld, all-digital electronic game.
This game is described in more detail there:
http://en.wikipedia.org/wiki/Mattel_Auto_Race (http://en.wikipedia.org/wiki/Mattel_Auto_Race)

Oh, rare, nice!
I didn't even think to Google it, and had no idea it would be the first handheld electronic game, that's cool.
In hindsight deserving of it's own video! Perhaps there is something else I can do with it?
Title: Re: EEVblog #606 - Mailbag
Post by: Excavatoree on April 22, 2014, 01:00:44 pm
Many thanks to the whole family for sharing their time with us. Before anyone starts complaining about the family being involved here, too bad! I enjoyed it and it is nice to see a happy family. I don't usually comment on videos here but I want to make sure that you, Dave, are sure that I appreciate the more personal touch here.

These are my sentiments as well.
Title: Re: EEVblog #606 - Mailbag
Post by: EEVblog on April 22, 2014, 01:04:40 pm
So it looks like a single channel - if your neighbours had one you'd probably overhear all their calls.

I used a Tandy 200 channel scanner back in the day to listen in on analog cordless phones, as well as analog mobile phones.
The novelty soon wore off, boring as bat poo!
Title: Re: EEVblog #606 - Mailbag
Post by: Excavatoree on April 22, 2014, 01:12:42 pm
So it looks like a single channel - if your neighbours had one you'd probably overhear all their calls.

I used a Tandy 200 channel scanner back in the day to listen in on analog cordless phones, as well as analog mobile phones.
The novelty soon wore off, boring as bat poo!

I had a scanner when I lived in a large apartment complex.  I guess I was lucky, because I heard some non boring stuff.  Yes, some of it was stuff I didn't want to hear, but at least it was interesting.
Title: Re: EEVblog #606 - Mailbag
Post by: station240 on April 22, 2014, 01:41:13 pm
Yeah oddly I was pulling apart a similar cordless phone a week or so ago.
Mine has a daughter board under the main PCB in the handset, which has a digital chip and contacts for the push buttons, connected via a set of SIL pins. Mine had a ball of solder stuck to the PCB by flux, just a hair's breadth from shorting the crystal that drives the chip.
Title: Re: EEVblog #606 - Mailbag
Post by: VK3DRB on April 22, 2014, 01:53:42 pm
Widlarising components.

When did he invent that? I have been doing that since 1979, albeit on rare occasions.

A classic was a D-Link router  |O that was a complete piece of crap, both by design and after sales support.

My relationship with the router and D-Link ended when I SMASHED the entire router PCB into tiny pieces with a large hammer, put the particles into a zip lock bag, then into a box and mailed the entire mess to the Managing Director of D-Link Australia, with a letter detailing explaining what I thought of D-Link and their product.
Title: Re: EEVblog #606 - Mailbag
Post by: free_electron on April 22, 2014, 04:37:22 pm
National advert according to widlar

(http://upload.wikimedia.org/wikipedia/en/a/ac/Widlar_-_NatSemi_Ad_400px.jpg)
Title: Re: EEVblog #606 - Mailbag
Post by: free_electron on April 22, 2014, 04:47:12 pm
more goodies :

http://edn.com/electronics-blogs/anablog/4311277/Bob-Widlar-cherry-bombs-the-intercom-speaker-item-2 (http://edn.com/electronics-blogs/anablog/4311277/Bob-Widlar-cherry-bombs-the-intercom-speaker-item-2)

http://www.computerhistory.org/revolution/analog-computers/3/156/402 (http://www.computerhistory.org/revolution/analog-computers/3/156/402)
Title: Re: EEVblog #606 - Mailbag
Post by: mtdoc on April 22, 2014, 05:43:25 pm
I didn't know it back then, but according to Wikipedia, the game that Dave has is considered rare in working condition...potentially the first handheld, all-digital electronic game.
This game is described in more detail there:
http://en.wikipedia.org/wiki/Mattel_Auto_Race (http://en.wikipedia.org/wiki/Mattel_Auto_Race)

Oh, rare, nice!
I didn't even think to Google it, and had no idea it would be the first handheld electronic game, that's cool.
In hindsight deserving of it's own video! Perhaps there is something else I can do with it?

Oh the memories... My brother and I used to play with one of those for hours at a time....  I wonder what happened to it..
Title: Re: EEVblog #606 - Mailbag
Post by: koppadasao on April 22, 2014, 09:28:22 pm
But what did the letter in the last package say? I can't sleep until I know...   :-//

The veroboard one?
He forgot what they were fr and wanted to know if I could figure it out.

At least, that's what I said, but there was one more board in there.
Title: Re: EEVblog #606 - Mailbag
Post by: Tothwolf on April 23, 2014, 02:45:47 am
Oh, rare, nice!
I didn't even think to Google it, and had no idea it would be the first handheld electronic game, that's cool.
In hindsight deserving of it's own video! Perhaps there is something else I can do with it?

How does the custom led look under the Tagarno? Did you also notice the Rockwell logo on the pc board and processor? I guess Rockwell designed both?

I wonder if the cordless phone is a 49MHz model? I disassembled a lot of those when they were being tossed out in large numbers, and it looks very similar to the phones I disassembled. Now if I could only figure out what to do with all the NOS spare antennas I have still in a box somewhere...
Title: Re: EEVblog #606 - Mailbag
Post by: nitro2k01 on April 23, 2014, 08:04:15 am
National advert according to widlar
Should have gotten the full size, so you can read the subtext. (Upload. Click to view full size.)
Title: Re: EEVblog #606 - Mailbag
Post by: Rigby on April 23, 2014, 01:11:19 pm
Corporation666 - really Mickey Dolenz?  I was such an insane fan of that band when I was a kid.
Title: Re: EEVblog #606 - Mailbag
Post by: firewalker on April 23, 2014, 02:44:34 pm
Did anyone tried EasyEDA?

Alexander.
Title: Re: EEVblog #606 - Mailbag
Post by: gemby on April 23, 2014, 04:18:33 pm
Did anyone tried EasyEDA?

Alexander.

I did last night, a little bit of struggle, some menus are weird, but it seems like it can be usable, will give it another go. Anyone else?
Title: Re: EEVblog #606 - Mailbag
Post by: ElektronikLabor on April 23, 2014, 06:07:31 pm
Hello Dave, many thanks for the video!
For the next time: can you spend more time with playing with the mailbag content?

I find the Tek demo board very interesting. I also would like to see you experimenting with the nixies!   :)
Title: Re: EEVblog #606 - Mailbag
Post by: Mr Simpleton on April 23, 2014, 09:02:19 pm
I'd say MC3357 in the base and MC3361 in handset as NBFM receivers, they seem to use 455 kHz ceramic filters too. Bet they are double super with 10.7 MHz as first IF. No low frequency ferrite antenna so yes it seems to be a VHF unit only (Base: 43.72-46.97 MHz, Handset: 48.76-49.99 MHz).
Switch on handset: OFF/STBY/TALK... just one channel.


Loved the cordless phone.

Old school analogue FM, crystal control.

Looks like a 30 / 39 MHz or similar - the older ones used 30 / 1.7 MHz.

No scrambling/encryption.

Transmitter on the right / superhet receiver on the left (maybe using a CA3089 or similar?).

Bit curious about the 3 position switch on the handset. Was thinking it's a channel change but there's not enough crystals for that.

So it looks like a single channel - if your neighbours had one you'd probably overhear all their calls.
Title: Re: EEVblog #606 - Mailbag
Post by: orion242 on April 23, 2014, 10:51:35 pm
Just picked up Bob from the printer and I must say....

He is looking pretty good looking down on the lab!

Title: Re: EEVblog #606 - Mailbag
Post by: Corporate666 on April 24, 2014, 12:28:48 am
Corporation666 - really Mickey Dolenz?  I was such an insane fan of that band when I was a kid.

Finally, someone got the joke! :) :) :)

Title: Re: EEVblog #606 - Mailbag
Post by: deth502 on April 24, 2014, 12:36:38 am
Corporation666 - really Mickey Dolenz?  I was such an insane fan of that band when I was a kid.

Finally, someone got the joke! :) :) :)


i got it, and was a bit surprised dave didnt, i would think that he would have heard that at least a few times before.  :palm:
Title: Re: EEVblog #606 - Mailbag
Post by: German_EE on April 24, 2014, 08:36:27 am
Cute kid opening the parcels and a pretty blonde reading the letters, Mr Jones, you could be out of a job  ^-^
Title: Re: EEVblog #606 - Mailbag
Post by: echen1024 on April 25, 2014, 04:34:19 am
Just picked up Bob from the printer and I must say....

He is looking pretty good looking down on the lab!
I would hang up that poster in my school locker... but something tells me staff might not be so pleased.
Title: Re: EEVblog #606 - Mailbag
Post by: xDR1TeK on April 26, 2014, 07:58:58 pm
Just picked up Bob from the printer and I must say....

He is looking pretty good looking down on the lab!
I would hang up that poster in my school locker... but something tells me staff might not be so pleased.

For his living memory, I would do it.
Title: Re: EEVblog #606 - Mailbag
Post by: codeboy2k on May 03, 2014, 08:50:19 pm
Due to Dave's raving about the Probemaster probes, I decided to buy a set to use with my Keithley 197a I just bought on the 'bay, as it was lacking probes.  I received the probes on Friday.

Wow!  I must chime in with Dave here... These are great probes, and really not expensive at all.

The silicone cable is like silk.. The tips are sharp as a tack... and it fits comfortably in my hands.  I bought the straight banana jack ends with retractable sheath, and some accessories such as the screw on alligator clips and extended tip for long reach.

My only gripe is that you need to buy the tip covers separately (which I did not buy).  The picture shows something included that looks like tip covers but these are not, they just cover the screw and the major portion of the tip extension, but leaving just the tip exposed still for probing.

These are so sharp that you really need to cover them, so remember to order tip covers too.

Despite this, I think it's well worth supporting this family owned business :)


Title: Re: EEVblog #606 - Mailbag
Post by: electrolux on May 04, 2014, 10:10:36 am
It's an awful poster >:D and I thought you didn't like puffing smokers :-DD
Title: Re: EEVblog #606 - Mailbag
Post by: Corporate666 on May 04, 2014, 08:10:10 pm
Due to Dave's raving about the Probemaster probes, I decided to buy a set to use with my Keithley 197a I just bought on the 'bay, as it was lacking probes.  I received the probes on Friday.

Wow!  I must chime in with Dave here... These are great probes, and really not expensive at all.

The silicone cable is like silk.. The tips are sharp as a tack... and it fits comfortably in my hands.  I bought the straight banana jack ends with retractable sheath, and some accessories such as the screw on alligator clips and extended tip for long reach.

My only gripe is that you need to buy the tip covers separately (which I did not buy).  The picture shows something included that looks like tip covers but these are not, they just cover the screw and the major portion of the tip extension, but leaving just the tip exposed still for probing.

These are so sharp that you really need to cover them, so remember to order tip covers too.

Despite this, I think it's well worth supporting this family owned business :)

Big thumbs up for Probe Master... that's why I sent them to Dave.  I have a ton of probes, mostly ones that came with meters (i.e. crap).  So when I got the Probe Master ones, it was like "wow, these things are great!  Dave will love those".  I picked up a few more sets and sent a couple to Dave.

I have a set of the unsheathed banana style ones (like those Dave has) hooked up to my power supply and I use them when batch testing panels of PCB's.  It makes it easy to test boards without having to depanel and solder wires on, and the sharp tips cut right through flux residue.

I also received their scope probe set last week - also very high quality.  The 1/10 probe has a very nice clicky feel, the connectors are metal, and they just have a really nice quality feel overall.  Highly recommended.
Title: Re: EEVblog #606 - Mailbag
Post by: peter.mitchell on June 02, 2014, 04:00:17 am
Corporate666 and codeboy2k, I ordered somewhere around $200-$250 with of probes from them, they were all really great apart from their SMD tweezers which where terrible. In the 7 or so pairs of multimeter probes, they all came with tip covers, so they are included, Maybe you missed out on them accidentally codeboy2k?

Also, when I ordered, the lady mentioned daves video and asked if thats where i saw it and that a few people had bought from them because of it.
Title: Re: EEVblog #606 - Mailbag
Post by: orion242 on June 03, 2014, 03:10:42 am
Just picked up Bob from the printer and I must say....

He is looking pretty good looking down on the lab!
I would hang up that poster in my school locker... but something tells me staff might not be so pleased.

For his living memory, I would do it.

I would tell them its my uncle and that is the best memory I have of the dearly departed...
Title: Re: EEVblog #606 - Mailbag
Post by: mayor on June 12, 2014, 02:27:23 pm
Did anyone tried EasyEDA?

Alexander.

Figured I'd report back here after a few week's use of EasyEDA. My previous experience is with the free version of Eagle.

Disclaimer : I have always found Eagle's UI and workflow to be absolutely horrible, painful and frustrating, especially the PCB layout part. The only reason to use Eagle is that so many hackers are also using it, like SparkFun, Adafruit, etc, and the huge parts libs.

The first thing with EasyEDA is that it happily imports Eagle libs (and Kicad), schematics and boards. So, as it stands, I think EasyEDA's library is actually the largest, and if not, could easily be by just importing what's out there.

The second thing is that while it takes a little bit of getting used to, it IS, imho, a million times better in terms of usability than Eagle. There are still things that need refining, but the good news is that the there is a team working on improvements.

I've made a couple of boards and they came back pretty much as expected.

I may sound like I work for EasyEDA, but really, I'm just sold on the idea, and feel liberated from Eagle's terrible UI and workflow.

That was my 2c, for anyone who cares :-)
Title: Re: EEVblog #606 - Mailbag
Post by: mechtheist on July 28, 2014, 09:21:04 am
Corporation666 - really Mickey Dolenz?  I was such an insane fan of that band when I was a kid.

Hi, I'm new, really new, but a quick fan of EEVBlog, so of course I started binging on them for awhile.  During one of the mailbags, Jones got a something from 'Mickey Dolenz', addressed to 'Davey Jones', and there was no reaction.  I didn't know if it was a really old joke or what.  I searched and this is the closest thing to any mention, and I can't figure out what your post here refers to.  is that it?  I thought it was pretty funny, but I saw nothing to make me think Dave Jones got the references.  Anyways, y'all will surely hear more from me, great forum, web site, blog etc.  Have a good one.