Some 15 years ago I recall reading about someone who used a shorted turn
of wire with teflon spagetti insulation to move a resonance in a Alpha
76 so he could use it on the WARC bands. He moved the resonance into the
CB band so if it ever found its way there it would destruct.
73, Dan, N5AR
Vic K2VCO wrote:
> On 3/24/2010 1:14 PM, Gary Schafer wrote:
>
>
>> Don't put a shorted strap around the choke. It will look like a shorted turn
>> and cause excessive current in the choke which may burn a section of the
>> choke out.
>>
>> Somewhere I read that you should not use a continuous band around either end
>> to terminate the ends of the choke winding. Same thing happens.
>>
>
> I thought about this. But a choke isn't a high-Q device like a tank coil and
> there isn't a
> lot of RF current in it. The shorted turn will reduce the inductance and
> increase the
> losses (not a bad idea if it doesn't produce too much heat) and it does move
> the resonances.
>
> I will try this at low power, as Carl suggested, and see if it gets warm.
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.791 / Virus Database: 271.1.1/2767 - Release Date: 03/24/10
> 00:33:00
>
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|