Re: Digital Volume Controls
Arfa Daily
"William Brown" <wbr...@yahoo.com> wrote in message
news:vjk4j61b33us57aru...@4ax.com...
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> I was told to totally remove the grease as this has leaked out from the
> spindle, but not my theory.
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> So is it OK for the contacts to run dry or should they be lubricated
> with CRC 2.26 or ELECTROLUBE EML.
>
>
> Thanks
It is very common for the 'stirring treacle' grease to migrate down the
spindle and onto the Gray disc and contacts in these rotary encoders, as
used as the volume control on many cheapo hifi units. I have restored more
of these than I care to remember over the years, by completely removing all
the grease from the disc and contacts. Before reassembling, I always add
just a little good quality (Electrolube in my case) contact cleaner /
lubricant, although strictly speaking, this should not be necessary, as both
the disc and the fixed contacts are usually gold plated. The success rate
and long-term refailure rate are excellent if you do a decent job, and it
doesn't take long.
Arfa