Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 3001239 times)

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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54250 on: April 01, 2020, 11:15:24 am »


I'd mail you a roll or two but it'll take a couple of weeks to get there  :-DD

Don't bother. US Customs would probably send it back.  |O ;D
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Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54251 on: April 01, 2020, 11:18:32 am »
Do you have a lawn sprinkler or three seashells available?  :-DD

I'd mail you a roll or two but it'll take a couple of weeks to get there  :-DD

OK, I'll nibble. Why three seashells?

And now med is beginning to understand why people hoard keep a stock for emergencies.

As somebody pointed out, CV19 gives you the sniffles not the bum's rush. Hence nose tissues are probably more important.
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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54252 on: April 01, 2020, 11:21:31 am »
Do you have a lawn sprinkler or three seashells available?  :-DD

I'd mail you a roll or two but it'll take a couple of weeks to get there  :-DD

OK, I'll nibble. Why three seashells?

And now med is beginning to understand why people hoard keep a stock for emergencies.

As somebody pointed out, CV19 gives you the sniffles not the bum's rush. Hence nose tissues are probably more important.

Being down to one roll in reserve is hardly an emergency. What I have on hand will last me for WEEKS. The 2nd roll is my "emergency stock"
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Offline Ice-Tea

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54253 on: April 01, 2020, 11:21:44 am »
Ouch. I presume you are certain it is broken rather than the ligaments being strained. If broken you don't want it to set in the wrong position.

Well, the *crack* I heard would suggest it broke ;)

But, not, I'm not sure. But it looks fairly straight. I know from past experiences (yes, not my first rodeo) that in case it's crooked they right it first (after injecting  local anasthesiac (sp?) in the root (which is one of the most painfull things /ever*)  after which they do exactly the same as I did: tape it firmly against its neighbour.

That said, still can feel I shouldn't put load on it. Which is too bad because I have a list the size of a toilet paper roll (ha!) of things to do in and out of the house.

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54254 on: April 01, 2020, 11:25:06 am »
Do you have a lawn sprinkler or three seashells available?  :-DD

I'd mail you a roll or two but it'll take a couple of weeks to get there  :-DD

OK, I'll nibble. Why three seashells?

And now med is beginning to understand why people hoard keep a stock for emergencies.

As somebody pointed out, CV19 gives you the sniffles not the bum's rush. Hence nose tissues are probably more important.

https://youtu.be/gdnuOa7tDco
 
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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54255 on: April 01, 2020, 11:28:05 am »
Do you have a lawn sprinkler or three seashells available?  :-DD

I'd mail you a roll or two but it'll take a couple of weeks to get there  :-DD

OK, I'll nibble. Why three seashells?

And now med is beginning to understand why people hoard keep a stock for emergencies.

As somebody pointed out, CV19 gives you the sniffles not the bum's rush. Hence nose tissues are probably more important.

https://youtu.be/gdnuOa7tDco

I had forgotten about that.  :-DD :-DD :-DD
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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54256 on: April 01, 2020, 11:43:55 am »
Now to rebuild the bench to accommodate it.   :palm:
Don't forget it has 4 rifa capacitors inside that you might like to check / replace. 2 by the power switch and 2 more by the power inlet socket
I see them....
« Last Edit: April 01, 2020, 11:47:32 am by Brumby »
 
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54257 on: April 01, 2020, 11:47:16 am »
Very nice cracks ...  :scared:     :-/O
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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54258 on: April 01, 2020, 11:58:28 am »
For your vicarious enjoyment....

Mains voltage select .... too easy.


Top down:


Inside front cover:


Inside back cover:
« Last Edit: April 01, 2020, 12:01:39 pm by Brumby »
 
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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54259 on: April 01, 2020, 12:02:52 pm »
Hermes has just been and delivered the 4503, photos to follow soon, shopping now. Plugged it in, switched on and all cal date is lost but input ranges seem to be operating as normal as the range LED illuminates for K \$\Omega\$, M \$\Omega\$, AC, DC, V, mA and A when the appropriate button is pressed, so it looks kind of promising.
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54260 on: April 01, 2020, 12:03:08 pm »
@Brumby: Be careful when you replace the RIFAs on the 3478A. You have to remove the power switch and the switch pin gets very brittle. Try and avoid snapping it like I did  :-DD
 

Offline Saskia

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Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54262 on: April 01, 2020, 12:08:31 pm »
For your vicarious enjoyment....

As you mentioned earlier, yes you can 3D print the button. I believe we talked about that once. The button model out there fits the shaft pretty good.

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Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54263 on: April 01, 2020, 12:10:13 pm »
Offers from the clueless... Calls it a multimeter, calls it portable and can't even get the name correct (That's a B not an 8):

https://www.ebay.de/itm/274324356646

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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54264 on: April 01, 2020, 12:20:25 pm »
Offers from the clueless... Calls it a multimeter, calls it portable and can't even get the name correct (That's a B not an 8):

https://www.ebay.de/itm/274324356646

I think, this is a non-native speaker offering this. And he/she is stating clearly in the description, that he/she has no clue of this device.

"Sie bieten hier auf einen gebrauchten Gerät. Über Funktions keine Angaben , da mir die nötige Kemtnisse fehlen."

But it looks like a nice 20V/5A PSU (I don't need it).
« Last Edit: April 01, 2020, 12:22:33 pm by BU508A »
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54265 on: April 01, 2020, 12:21:29 pm »
For your vicarious enjoyment....

Mains voltage select .... too easy.
...

I shall now be able to sleep more soundly after the pictures  ;D Nice bit of Rifa Madness too....
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Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54266 on: April 01, 2020, 12:29:21 pm »
Offers from the clueless... Calls it a multimeter, calls it portable and can't even get the name correct (That's a B not an 8):

https://www.ebay.de/itm/274324356646

I think, this is a non-native speaker offering this. And he/she is stating clearly in the description, that he/she has no clue of this device.

"Sie bieten hier auf einen gebrauchten Gerät. Über Funktions keine Angaben , da mir die nötige Kemtnisse fehlen."

But it looks like a nice 20V/5A PSU (I don't need it).

Non-native to what language? They managed to write Digital Multimeter although it clearly says DC Power supply on the front of the device.

McBryce.
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54267 on: April 01, 2020, 12:37:27 pm »
The 8505A PSU. Three screws and the entire unit slides out the back. Should be a straight forward and simple re-cap.


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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54268 on: April 01, 2020, 12:43:58 pm »
Offers from the clueless... Calls it a multimeter, calls it portable and can't even get the name correct (That's a B not an 8):

https://www.ebay.de/itm/274324356646

I think, this is a non-native speaker offering this. And he/she is stating clearly in the description, that he/she has no clue of this device.

"Sie bieten hier auf einen gebrauchten Gerät. Über Funktions keine Angaben , da mir die nötige Kemtnisse fehlen."

But it looks like a nice 20V/5A PSU (I don't need it).

Non-native to what language? They managed to write Digital Multimeter although it clearly says DC Power supply on the front of the device.

German. And if this person is really not interested in technical stuff and do not care (for any reason) then one can see such things. I did many times, and sometimes the person suffers from dyslexic as well.

So, if somebody wants a decent PSU like this, perhaps a low-ball offer may be successfull. Just a guess.
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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54269 on: April 01, 2020, 12:46:15 pm »
OK, shopping can wait a few minutes, I had to crack it open. Cosmetically it is fucking mint apart from the calibration stickers, last cal was 2005 so its my guess it has not been used since then and measuring the RAM retention battery has confirmed it, is reading 120mV and has signs of leakage. Probing the PCB where the signs can seen shows it has as the tracks of the battery fluid are conductive around Q1 and the battery, nowhere else can I find any conduction, so I'm hopeful that after replacing the battery and a Good scrub of the PCB this will come to proper life again and then re-cal should restore it back to normal function. Inside it is like it has just been made, nice and date codes on the chips are 1997 / 1998. Case is all metal so its pretty robust, has 1 scratch on the top and all the feet and tilting bail are correct present in mint condition. Here a few snaps of the battery area to keep you all going till I return from shopping.

Who let Murphy in?

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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54270 on: April 01, 2020, 12:50:00 pm »
The 8505A PSU. Three screws and the entire unit slides out the back. Should be a straight forward and simple re-cap.



That 15000uF cap is definitely bulging
Who let Murphy in?

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Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54271 on: April 01, 2020, 12:51:53 pm »
Offers from the clueless... Calls it a multimeter, calls it portable and can't even get the name correct (That's a B not an 8):

Oh, I like those, especially spectrum analysers being called oscilloscopes :)

I found this "Ex-army Digital Multimeter", and such a poor description meant I was able to get my first nixies for £0.99 :)



More teardown pics and comments: https://www.eevblog.com/forum/testgear/fluke-8125a-military-dmm-teardown/msg2540730/#msg2540730
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
 

Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54272 on: April 01, 2020, 01:56:44 pm »
Having ignored they "nay-sayers" and the why-bother gang, I went ahead and finished my 3D printed attachment for my DER EE DE5000 LCR meter. I can now connect my BNC Kelvin tweezers and probes to the meter.

McBryce.

 
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Offline AVGresponding

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54273 on: April 01, 2020, 02:21:48 pm »
Yuck, that's worse than my 4503 was Specmaster.

The price of those pcb mount batteries being what they are, I just made a custom pack with two AAAs   :-X
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Online Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #54274 on: April 01, 2020, 02:28:09 pm »
Being down to one roll in reserve is hardly an emergency. What I have on hand will last me for WEEKS. The 2nd roll is my "emergency stock"
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