I managed to find a handful of genuine A-B
centre-tapped pots (various values) at a local surplus store – grabbed them
all! I used to search the surplus stores out here in NCal for these but only
got lucky that one time.
I have come up with some NOS PCB layout pots
that have a fourth leg at the right place for the center-tap (I was jumping for
joy that it might be a real tapped pot until I looked closely). It would make
fabricating your own a bit easier so I bought a handful. Halted (hsc.com) in
Sunnyvale still had some
in a bin last time I was there. They’re 50k lin but should work in many
applications. The micromoog also uses a couple of tapped pots iirc.
Don’t rule out opening the pots up a
cleaning them out. They are “sealed” types on the 101 so they may
have not been through repeated “cleaning” attempts. I found that
some almost completely dead pots on my 101 came out fine. Carefully pop a
couple of the tabs and flush with cleaner and lube.
Good Luck!
mw
From:
emlsynth@yahoogroups.com [mailto:
emlsynth@yahoogroups.com ] On Behalf Of klosmon
Sent: Tuesday, April 04, 2006
11:47 AM
To: emlsynth@yahoogroups.com
Subject: Re: [emlsynth] center
tapped pots
At 11:39 AM 4/4/2006, you wrote:
Hi,
Does anyone know a place where I can buy 10k
center
tapped pots like used in the eml 101?
Thanks,
Regards,
kris
I've never found them anywhere. On the last
two 101s I repaired, I ended up making my own (getting hold of standard 10k
linear pots, taking them apart, and using conductive epoxy to cement a
center tap to the conductive element. It takes some practice, but it is
do-able.).
~GMM
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