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
For shunt fed or permanent magnet DC motors, speed is proportional to the
armature voltage. The sears screwdriver is most likely to be a permanent
magnet type. Scaling down the voltage scales down the speed. For example,
if the original voltage is 6 volts at 150 rpm, then 0.6 volts will run it at
15 rpm.
73
Larry, N9DX
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