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Re: [TowerTalk] Remote Tuning of Shunt-Fed Tower

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Remote Tuning of Shunt-Fed Tower
From: "Pat Chiles" <chilesp@adelphia.net>
Date: Thu, 6 Oct 2005 12:15:58 -0400
List-post: <mailto:towertalk@contesting.com>
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
>
> why are you going with a stepper ?? you could just use
> a DC motor and switch the polarity to reverse the
> motor... yes you lack the 'preset' ability but its
> going to be much cheaper...
>
> just a thought
>
> Dan N8DCJ


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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