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geoff geoff is offline
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Default Bourns Pot Shafts Not Long Enough!

On 14/10/2018 9:07 AM, Paul wrote:
On 10/13/2018 6:57 AM, Scott Dorsey wrote:
In article , PaulÂ*
wrote:
What to do?Â* Maybe I could cut off the tip of the
original shaft, and just epoxy it onto the new one?



Epoxy won't work.Â* Silver solder will for carbon pots, but it's hard not
to damage conductive plastic ones.Â* (I mean hard jeweler's solder, not
the
2% kind for Tek scopes).

Back in 1975, you could get replacement pots onesie-twosie from the
shops that catered to TV repair stores, and they came with outrageously
long shafts that you were expected to cut down to size.Â* Those days are
long gone.

Mod-Pot is likely the only solution for longer shafts in onesie-twosies
but you can try doing a search for length on digi-key.

Today just about every pot is a custom item, making replacement a pain.
Which is why I recommend it only as a last resort when cramolin and
rebuilding won't help.
--scott


Â*Â*Â* "Rebuilding" as in trying to fix the original pot?

Â*Â*Â* Ok, I've cracked it open.Â* There are two fingers for the variable
resistance wiper, and two for the center pin.Â* I will try to gently
bend these metal fingers up, so that they touch the traces again, and
then clean with the Deoxit Gold that I just bought (the guy at the store
said everyone swears by it!).

Â*Â*Â* I'll let you know how it goes....but that's a good suggestion,
after considering the alternatives!

Â*Â*Â*



DeOxit Gold is great for what it's for, but treating/lubing pots isn't it.

You need Caig FaderLube, or whatever it's current name is. It is a
totally different thing to DeOxit Gold.

geoff