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Re: A2 Joystick Maintenance
carbide@egine.com wrote:
Michael J. Mahon wrote:
I don't know whether you saw the movie "My Big Fat Greek Wedding", in
which Windex was regarded as the universal solvent, antiseptic, etc.
Some people feel the same way about WD-40--spray it on anything and
it will make it better!
Heh heh! I do use it for a lot of things- like removing the sticky
stuff that some price stickers leave behind. And come to think of it,
my brother-in-law sprays it on his bait when trolling the Columbia
River for sturgeon.... But it's no substitute for bailing wire or duct
tape. ;-)
It *is* useful stuff. ;-)
I would think that cheaper pots might be less able to withstand the
solvent properties of WD-40. I specifically remember using it to
clean/lube pots in an audio mixer/recorder. It worked perfectly, the
the pots were unusable before (noisy, eratic) and smooth and quiet
after. Those were surely higher quality than the pots used in cheap
joyticks.
That's a good point. High quality carbon pots have a thicker resistance
element that is less affected by small quantities of solvent. They are
also often sealed (Allen-Bradley comes to mind).
Typical carbon pots have an element that is just "carbon paint" on a
plastic backing, which is quite thin and easily dissolved.
Also safe in a solvent environment are metal film pots, but they are
usually "mil spec" and out of the price range of most consumer gear.
Wirewounds would, of course, be impervious to this problem, but would
never be found in single-turn pots with values as high as 150K.
-michael
New, faster SUDOKU v2.0 solver for Apple II's!
Home page: http://members.aol.com/MJMahon/
"The wastebasket is our most important design
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