[TowerTalk] Remote Tuning of Shunt-Fed Tower

[Jim Lux]

At 09:15 AM 10/6/2005, Pat Chiles wrote:
>Dan,
>
>The best answer I can give you is I am looking for something "precise" if it
>is cost effective.  I am currently turning a gamma vacuum variable with a
>cheap 8 RPM gearhead 12V DC motor from AllElectronics.  I used momentary
>switches, leds, and some "junk-box gears" to give me the capacitor's "end of
>rotation" warning.  I want to go with an omega match if the prototype will
>give me effective dual band operation.  The steppers are more compact, more
>precise, and more eloquent.  That being said they are not worth $220 to me.
>Pat, K8PC
>
>
>
> > Pat
> >

How much torque do you need?  AllElectronics has a stepper driver kit for 
$25 (includes the litle motor), but it's basically "step and direction" 
with a pulser.