Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 2251119 times)

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Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44700 on: December 10, 2019, 08:50:53 pm »
Ender 3 FTW!

Mine is as yet unmodified other than glass bed. Today's creation, which works, which was also quite surprising. Not perfect so needs some fettling with the design. I made a couple of holes too small for the screw heads (I just eyeballed it so my fault entirely). But the idea works!

So input from FreeCAD I put together while in a meeting today (yes still no Fusion 360 - don't need it, don't want it  :-DD)



Output. Little fettling other than removing a difficult to reach support underneath the paddle arm. Turned out some 0.6mm PCB rammed under it did the job. Contacts are squares of 0.6mm thick FR4 PCB substrate glued to the paddle arm.



In action, to prove it just doesn't look pretty. Please excuse my shitty sending. This is literally the third thing I've sent on this key. Not got used to it yet.



About two years ago I was introduced to 3d printing here and skipped it. And here I am  :-DD. Thanks all - another TEA thread initiated tool in the box!
 
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Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44701 on: December 10, 2019, 08:53:30 pm »
Where is Capacitor Claus ?

887688-0

when you need him ?

887692-1

honestly.

887696-2

I need to drive to Reichelt over the week end ...


 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44702 on: December 10, 2019, 08:56:03 pm »
Is that capacitor spooge and leak at the same time. Fun! :(
 

Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44703 on: December 10, 2019, 09:00:11 pm »
Where is Capacitor Claus ?

(Attachment Link)

when you need him ?

(Attachment Link)

honestly.

(Attachment Link)

I need to drive to Reichelt over the week end ...

Wouaa this is messy!  :-\

Hope the board is fine.
 
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Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44704 on: December 10, 2019, 09:04:55 pm »
vintage Nakamichi OMS 2 CD player.
Oh, there are some distortions, so instead of taking the 90€ I'll let you have it.

fair enough. Only problem is that I don't have the service manual which would be kinda nice regarding the parts list and the details regarding test points and calibration
and that you can't just disconnect the laser pickup without ESD-toasting it.

and naturally I can't just throw the entire assembly into the ultrasonic without disconnecting the drive first. But I need to short circuit the laser pickup and for that I would VERY MUCH like to have the bloody service manual ...
 

Offline Carl_Smith

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Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44706 on: December 10, 2019, 09:31:51 pm »
There is NOTHING I like about that meter other than it's on the other side of the sodding planet  :-DD
 
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Offline Terry01

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44707 on: December 10, 2019, 09:38:07 pm »
There is NOTHING I like about that meter other than it's on the other side of the sodding planet  :-DD

LOL  :-DD
Sparks and Smoke means i'm nearly there!
 

Offline Carl_Smith

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44708 on: December 10, 2019, 09:41:50 pm »
There is NOTHING I like about that meter other than it's on the other side of the sodding planet  :-DD

Sometimes I am tempted to buy things from AliExpress just to see if they are really as bad as they seem.  But I really hate to encourage them. 

Offline bingo600

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44709 on: December 10, 2019, 09:48:58 pm »

While this would have been cheaper, I had fun just building my own 3amp LDO linear supply for a pair of GPSDO's and a distribution amp.  Used a MIC29300-12WT regulator, the hard part was distributing the high thermal density.  Used a ceramic TO-220 insulator and added a polished aluminum heat spreader (out of some scrap aluminum plate) and bonded it with high thermal conductive epoxy to the Hammond box.  I wanted a super clean dedicated source that ran cool for 24/7 operation, and it came out great. I didn't document it very well, I just tossed it together.  Need to pull it out as it sits behind my DSO and see whats in it.

(Attachment Link)

I couldn't even get the (torroid) transformers needed for an 1U enclosure , for the price of these guyzz.
So i guess i need a higher cabinet now.

My problem is that Mouser/Digikey/Farnell etc.. adds a lot to shipping & VAT (Customs)  , so i don't buy there.
I'd prob have used a LM317 w boost. - http://www.bristolwatch.com/ccs/LM317boost.htm


But i'll give the MIC29300-12WT a read ... Whats the ripple on that guy ?

Wished Hammond boxes were cheaper  in DK (EU) :-\

/Bingo
« Last Edit: December 10, 2019, 10:07:44 pm by bingo600 »
 

Offline bingo600

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44710 on: December 10, 2019, 09:51:35 pm »
Still trying to work out a cheap enclosure for mine. I think I’m actually just going to bolt a couple of Hammond boxes and add some feet to it and a 3DP finger protection over the transformer terminals. Leave the back open.  I’ll mount one Hammond as mains in with fuse/filter/switch/IEC socket and another output one with a couple of power poles in it.

Mine are closed on 3 sides , doesn't need any extra housing , just something simple.

/Bingo
 

Offline worsthorse

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44711 on: December 10, 2019, 10:02:50 pm »
Random 3d print attempt... Can I make a single piece morse single paddle to stick on the front of a QRP Labs QCX? Place your bets. Printing now...



Needs added two brass screws, two bits of brass shim and some wire to make it work.

I'll bet one pack of Gummibears (Haribo) that it'll work out. And will burst into flames after 10 seconds or so. :)

You can surely make. Whether it will be usable is another question.  :-DD
specialization is for insects.
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44712 on: December 10, 2019, 10:07:00 pm »
Because everyone would like a bluetooth speaker in their bench multimeter:

I'm sure it is very useful, with a compelling USP as an "I speak your voltage" machine.

All you hat to do is connect it to a PC to capture the reading, then upload that to a cloud IoT service using (say) IFFT, then get that to send the reading to the bluetooth speaker.

What could possibly go wrong?
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".
Having fun doing more, with less
 
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Offline worsthorse

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44713 on: December 10, 2019, 10:12:18 pm »
*sigh* ... no help on my 184 questions in either of the Tek forums on groups.io.  Will post a thread here, in the repair forum.
specialization is for insects.
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44714 on: December 10, 2019, 10:33:49 pm »
Dave! Dave! ... get this thing!  :palm:

Because everyone would like a bluetooth speaker in their bench multimeter:


I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44715 on: December 10, 2019, 10:35:44 pm »
may the OVP be with you - always  :-DD
 

Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44716 on: December 10, 2019, 10:37:46 pm »
Elna audio caps and Nichicons for the power supply ordered. Why do I have to order stuff in the UK ? Has Germany already declined to Venezuela, when it comes do parts supplies ? *expletive deleted*
 

Online alextwin007

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44717 on: December 10, 2019, 10:41:16 pm »
I don't know, there's something to be said for being able to say you are such a test equipment addict that even your alarm clock is a multimeter :P
Having a test equipment addiction is difficult when you don't have a lot of room.  The solution, only collect small adorable test equipment.

Looking for a tek 1401 / 1401A, if you have one message me
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44718 on: December 10, 2019, 10:42:41 pm »
Because everyone would like a bluetooth speaker in their bench multimeter:

I'm sure it is very useful, with a compelling USP as an "I speak your voltage" machine.

All you hat to do is connect it to a PC to capture the reading, then upload that to a cloud IoT service using (say) IFFT, then get that to send the reading to the bluetooth speaker.

What could possibly go wrong?

You find out it only speaks Chinese.  ::)
An old gray beard with an attitude.
 

Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44719 on: December 10, 2019, 10:47:14 pm »
and calls home.
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44720 on: December 10, 2019, 10:52:57 pm »
I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44721 on: December 10, 2019, 11:14:03 pm »
My god the display on that is a giant testicle.
 

Offline Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44722 on: December 10, 2019, 11:28:14 pm »
vintage Nakamichi OMS 2 CD player.
Oh, there are some distortions, so instead of taking the 90€ I'll let you have it.

fair enough. Only problem is that I don't have the service manual which would be kinda nice regarding the parts list and the details regarding test points and calibration
and that you can't just disconnect the laser pickup without ESD-toasting it.

and naturally I can't just throw the entire assembly into the ultrasonic without disconnecting the drive first. But I need to short circuit the laser pickup and for that I would VERY MUCH like to have the bloody service manual ...
Already tried 'Schaltungsdienst Lange'?
 
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Offline Saskia

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44723 on: December 10, 2019, 11:39:26 pm »
Thanks, unfortunately they do not have the OMS 2-manual. the OMS20 is a completely different animal.
 

Offline Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #44724 on: December 10, 2019, 11:47:02 pm »
Just the perfect anchor for the owner of a 12RU box with space to spare >:D Ideal for @brumby you want a Christmas present :-DD eBay auction: #223782538722

Shame it doesn't have the 1.3GhZ module installed in spite of it bieng stickered as having it.

How can you see that it does not have that board? The rear has  a 'C' connector.
 


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