On Jul 13, 10:12 am, msg wrote:
Greetings:

Please view these photos of a three-turn planetary drive
pot that uses a conventional "stackpot" formfactor athttp://www.cybertheque.org/homebrew/rcvr/images/antennas/pot.jpg
Resistance = 1K

It was made in 1966 by CTS; stampings: 36129 137.6637

Does anyone recognize this pot technology? Any suppliers
nowadays? I need the form factor for modifications to antenna
rotator assemblies in a space that does not permit using
larger multi-turn pots and using trimmer versions is not
sufficiently robust.

Wow, I had seen those in the past but not for many many years.

If you are truly updating some rotators, there are some articles in
QST, CQ, 73, etc. from the past 20-30 years on doing it using
something other than 360-degree pots. Some of them use essentially
homebrew shaft encoders.

Tim.