[HomeBrew] Help with RF chokes

Mon, 14 Jul 2003 19:30:42 -0400

Doesn't Radio Shack sell a brute-force RF filter for DC leads in a car that would 
work for that? I think they used to have them a few years ago at least.

On 8 Jul 2003 at 14:06, [email protected] wrote:

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> Hi Guys;
> 
> I need help again. I want to put RF chokes in the motor leads to my
> screwdriver antenna. I don't know what inductance is good for the HF
> band. I don't know if any are available commercially. I would like to
> wind my own if I knew the parameters. I measure 800 ma running and in
> excess of 10 Amperes when stalling at the end. I would not normally
> allow it to stall but I wouldn't want to lose a choke if it did. I was
> thinking about a bifiler winding on a ferrite rod (like a filament
> choke) but don't know the core material or number of turns. Any help
> would be appreciated. Thank you.
> 
> Ed Richards K6UUZ 
> 
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