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Test Equipment Anonymous (TEA) group therapy thread

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TERRA Operative:
And now it's time to get the spare TM5006A mainframe working.. I got two rack mount TM5006A (I'm using one) and one TM5006, so two of these will be sold to make space. They are rather large...

I already replaced a couple blown transistors and associated burnt resistors just the other day, but I just now found a faulty LM339 that I replaced from my spare parts stock and now the thing actually puts out its voltages as expected with no load.
However.... when I load it up on my test load bank as per the manual, the voltages collapse. booo.

So, I've basically traced it down via a process of elimination to the PWM controller chip, an SG3525.

Annnd no-one in Japan seems to have one in stock..  |O Anyone here happen to have a spare SG3525, UC3525 or KA3525 laying around? :D

Zoli:

--- Quote from: TERRA Operative on February 05, 2023, 04:32:37 pm ---...
Anyone here happen to have a spare SG3525, UC3525 or KA3525 laying around? :D

--- End quote ---
Most important part: what package?
Disclaimer: I don't have one, but in a week I can dig out a DIP-16 one(tested working).

TERRA Operative:
Looking for DIP-16

Ha, I'll be in Canada for a few days in a few weeks actually, wanna come drop it off in Yellowknife for me? :-DD

Zoli:

--- Quote from: TERRA Operative on February 05, 2023, 04:47:13 pm ---Looking for DIP-16

Ha, I'll be in Canada for a few days in a few weeks actually, wanna come drop it off in Yellowknife for me? :-DD

--- End quote ---
Or maybe you want to fly down in the greater Vancouver area? Anyway, if there's no offers this week for replacement, next weekend I will extract the one in case; and tomorrow I will confirm if it's possible.

TERRA Operative:

--- Quote from: Zoli on February 05, 2023, 04:58:03 pm ---
--- Quote from: TERRA Operative on February 05, 2023, 04:47:13 pm ---Looking for DIP-16

Ha, I'll be in Canada for a few days in a few weeks actually, wanna come drop it off in Yellowknife for me? :-DD

--- End quote ---
Or maybe you want to fly down in the greater Vancouver area? Anyway, if there's no offers this week for replacement, next weekend I will extract the one in case; and tomorrow I will confirm if it's possible.

--- End quote ---

I will have a layover in Vancouver... Gonna go stock up on some me-sized clothes at a McArthurGlen outlet store. Clothes run like 3 sizes small here in Japan, and 28cm is about as big as shoes get (I'm size 31)...


Need something from Japan? We can do an exchange. hahahaha :D

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