[Antennas] WTD: Balanced Output Tuner Plans

Fri, 17 Jan 2003 16:52:19 -0800

Instead of roller inductors,  I have been wondering about the inductor on 
the screw driver type antennas.  If one could build this type of inductor 
in the shack with a plastic gear and windlass, how would it work compared 
to the roller inductor, that has inductance after the contact point.

Just a question to find out more info.

Chris opr VE7HCB

At 04:53 PM 2003-01-17 -0600, Darryl J. Kelly wrote:
>Rob,
>Recently built a a balanced output tuner made with 2 roller inductors with a
>capacitor across the output. Uses a 1:1 balun on front end. Simple 
>electrically,
>a little more complicated mechanically. Roller inductors ganged with sprockets
>and matching belt. Works great, mine still in breadboard form. Recent QST 
>article
>(which I can't find) showed circuit and construction. This is my main tuner
>for my balanced line. Hope this is of interest.
>Darryl, KK5IB
> >Hi all;
> >
> >I'm wanting to build a tuner with a balanced output.  Can anyone point me to
>
> >plans for one?  I'm not smart enough to design it myself ;^)
> >
> >--
> >72/73/oo - Rob, w0jrm - [email protected] - ex-kc0bom - oink d'oink
> >ARRL, FPQRP -330, SOC #497, QRPp-I #19, IAQRP #143, ARS #1143
> >Rigs: KWD TS-820; Drake TR-3; MFJ 9040
> >http://www.qsl.net/w0jrm
> >
> >- - -
> >
> >Your moderator for this list is:
> >Larry Wilson KE1HZ [email protected]
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>
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