"K. Hastings" wrote in message
...
I'm fixing up an older Channel Master light-duty rotor to turn a small 2m
wooden quad I've built for my attic, but one of the plastic gears in the
control unit disintegrated in my hand during the rennovation. The rest of
the control unit is in rough shape too.

I'm thinking of building my own power supply/control unit for this rotor,
but I'm not clear on just how these 3-wire units actually control the
rotor.
Any ideas? I can perhaps make my own simple PS, and figure out the
direction-setting power scheme, but getting feedback on the antenna
position
to prevent over-turn cound be tricky.

Thanks to all who reply...

VE9XYZ Kevin


You should be able to find a suitable gear replacement from Small Parts,
Inc. (Florida)
Small Parts, Inc.
13980 N.W. 58th Court
P.O. Box 4650
Miami Lakes, FL 33014-0650


http://www.smallparts.com/

Other interesting rotator sites (modifications and diagrams)

Doug Braun's addition of an indicator to the Radio Shack rotator
http://www.dougbraun.com/rotor_mod.html

http://www.dougbraun.com/pix/rotorpix/P1010017.jpg

http://web.usna.navy.mil/~bruninga/rotator1.html

w9gb