Products > Test Equipment
Test Equipment Anonymous (TEA) group therapy thread
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Specmaster:

--- Quote from: nixiefreqq on July 04, 2022, 12:14:17 pm ---y'all got me playing with my 54622d ..... and damn it.   those squishy switches under the crt were back to being a pain in ass.

had to really mash them to get any action.  had done the carbon button cleaning with a q tip and IPA about 2 months ago and they were better.  but it did not last.

a guy on utube had success with making little aluminium tape covers for his carbon buttons.  tried his method , but it did not work for me.  despite many attempts could not get the tape to stick to the buttons.

finally tried larger rectangles of AL tape and it so far is 100% good.

my advice:

do not mess with removing the squishy rubber switch strip.  it is hard to get back into place normally, and impossible without knocking off your new AL button covers.

just use tweezers to place the AL tape rectangles over the buttons and press flat with a paper towel and your finger.  size the rectangles so that they will be captured in the cavity when the narrow piece of circuit board is back in place.

was worried that the pieces of tape would deform or move and short to the contacts on the board......but it did not happen.  just a light touch now and the switches all work.

time will tell if this fix lasts, but for now i am calling it done.





--- End quote ---
A couple of years back, I saw a YouTuber solve that problem with some conductive paint, it wasn't particularly cheap but did the trick. I think it is also used for repairing / replacing missing / damaged tracks on PCB's.

Found this link https://www.amazon.co.uk/LiquiwireTM-100-Electrically-conductive-electric/dp/B07XBGZRV7/ref=sr_1_5?crid=2RGW62H42H1JD&keywords=conductive+paint&qid=1656943832&sprefix=conductive+paint%2Caps%2C172&sr=8-5
Specmaster:

--- Quote from: mnementh on July 04, 2022, 01:06:04 pm ---
--- Quote from: nixiefreqq on July 04, 2022, 12:43:20 pm ---
--- Quote from: mnementh on July 04, 2022, 12:32:52 pm ---
--- Quote from: nixiefreqq on July 04, 2022, 12:14:17 pm ---y'all got me playing with my 54622d ....


--- End quote ---

You horrible tease! No pics of the component side, or the main PCB... or the component side of the main PCB...  |O

mnem
*toddles off to polish his wood*

--- End quote ---

did that back on page 5002.

things move fast on this thread.

(not great pics.  but i am not a camera guy)

--- End quote ---

How the fuck did I miss that...?  :wtf:

It must've been the urethane fumes...  :palm:

Speaking of which, 2nd coat just went down on the Anniversary Project table... not sure how I like it so far. I went with warm semi-gloss to bring some color to the wood, but now thinking I maybe should've either gone hi-gloss or satin.

 :-\

mnem
"Never judge a paint job by the first coat. Patience, youngster." ~grand-dad

--- End quote ---
Easy, I missed your post didn't I?
TERRA Operative:

--- Quote from: Specmaster on July 04, 2022, 02:04:34 pm ---
--- Quote from: nixiefreqq on July 04, 2022, 12:14:17 pm ---y'all got me playing with my 54622d ..... and damn it.   those squishy switches under the crt were back to being a pain in ass.

had to really mash them to get any action.  had done the carbon button cleaning with a q tip and IPA about 2 months ago and they were better.  but it did not last.

a guy on utube had success with making little aluminium tape covers for his carbon buttons.  tried his method , but it did not work for me.  despite many attempts could not get the tape to stick to the buttons.

finally tried larger rectangles of AL tape and it so far is 100% good.

my advice:

do not mess with removing the squishy rubber switch strip.  it is hard to get back into place normally, and impossible without knocking off your new AL button covers.

just use tweezers to place the AL tape rectangles over the buttons and press flat with a paper towel and your finger.  size the rectangles so that they will be captured in the cavity when the narrow piece of circuit board is back in place.

was worried that the pieces of tape would deform or move and short to the contacts on the board......but it did not happen.  just a light touch now and the switches all work.

time will tell if this fix lasts, but for now i am calling it done.





--- End quote ---
A couple of years back, I saw a YouTuber solve that problem with some conductive paint, it wasn't particularly cheap but did the trick. I think it is also used for repairing / replacing missing / damaged tracks on PCB's.

Found this link https://www.amazon.co.uk/LiquiwireTM-100-Electrically-conductive-electric/dp/B07XBGZRV7/ref=sr_1_5?crid=2RGW62H42H1JD&keywords=conductive+paint&qid=1656943832&sprefix=conductive+paint%2Caps%2C172&sr=8-5

--- End quote ---

I got some of this stuff cheap locally which so-far seems to work quite well.
Can't comment on its longevity, but it certainly made the buttons light to the touch so far...

https://www.bareconductive.com/products/electric-paint?variant=37766230900916
mnementh:

--- Quote from: Specmaster on July 04, 2022, 02:05:48 pm ---
--- Quote from: mnementh on July 04, 2022, 01:06:04 pm ---How the fuck did I miss that...?  :wtf:   It must've been the urethane fumes...  :palm:
--- End quote ---
Easy, I missed your post didn't I?

--- End quote ---
*Chalks both up to CRS*

mnem
highly technical medical term: Can't Remember Shit
TERRA Operative:
Step two on the tube amp.

Tube sockets are mounted, so a mock-up on how things will look (minus the output transformers).
I'll have to find another voltage regulator tube so they match. :P
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