Jeff Liebermann wrote in message
...
On Fri, 29 Apr 2011 16:07:55 -0700, Pilgrim
wrote:

Allen Bradley used to make "Mod Pots". Didn't some one else pick up this
line after they stopped? What value/s do you need? I have some new old
stock.

Please Google for "modular potentiometer" and you'll find that Cermet,
Vishay, Alpha (Taiwan), and probably some others, make them. For
example:
http://www.potentiometers.com/series389.cfm

On the other foot, I have had considerable difficulties with such
ganged pots in various pieces of equipment. I have several Radio
Shock scanners with them, that are worn out and have "dead" spots. My
ancient Wavetek 3000B service monitor many of these that are all
intermittent. I've had limited success drilling a tiny hole in the
side, and injecting contact cleaner.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Where the track is not too bad , just worn in arcs.
Bend, out or in, whichever direction has most fresh track,
the wiper blade/blades, to use a different
part of track. If the wiper support can be wedged
away from the track then bend the wiper to give more
contact force. If limited access then 2 needle points one about where the
wiper starts
to bend and then at the wiper/s themselved , on the other side and against
one another
force in some more wiper tension. To do this with dual pots , usually the
central one is not
acessible. With a Dremmel and .5mm grinding disc, cut 2 or 3 slots in the
screening can ,
enough to bend outwards and gain some space. Bend back afterwards and glue
over the cuts.
If the rivets have slackened on the
paxolin then squash with an old pair of basic red/blue/yellow single
action crimp pliers. To get to the wiper rivet
grind down the the interfering bulges a bit between the
red and blue sections of the crimp tool.