Topband: DC Motor for turning Capacitor?

Bob Tellefsen n6wg at earthlink.net
Sat Jan 3 15:26:57 EST 2004


Hi Pat
I bought a 12v dc motor with reduction gearing from Jameco.
It was about $20 as I recall.  It can run on down to around
5 or 6 volts, just slower.  Makes a nice way to fine adjust
your tuning.  Get near quick on 12v, then switch in a series
resistor to slow down the motor to get right on.  The reduction
gear has an output shaft of .25 inch diameter, just right
for a flexible coupling to a tuning cap.
My unit's spec is 4.5 rpm, which is just perfect for tuning
the series cap on my 160m top loaded vertical.
73, Bob N6WG

-----Original Message-----
From: topband-bounces at contesting.com
[mailto:topband-bounces at contesting.com]On Behalf Of Pat Chiles
Sent: Saturday, January 03, 2004 2:45 PM
To: topband at contesting.com
Subject: Topband: DC Motor for turning Capacitor?


Can someone suggest a dc motor for turning a remote capacitor on an inverted
L?  Sears has a battery operated screwdriver on sale for $9.98, but it is a
150rpm.  Any suggestions would be appreciated.
Pat, K8PC
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