Steve Thompson escribió:
> Adrian Rees (M1LCR) wrote:
>
>>Hi all
>>We have an LK 500 Amplifier (the pair of 3-500Z's model) that started to
>>spark and arc quite badly last weekend when we tested it ready for IOTA.
>>
>>We've had a look at the amp, and it appears that the varnish on the anode
>>choke has come off, and there are signs of tracking.
>>
>>Given that it'll need re-winding, what you boys suggest I coat the choke in,
>>to stop it from unravelling ?
>
> I've never tried it, but how about plumber's PTFE tape? No
> worries about losses.
>
> Steve
I've used plumber's PTFE tape to protect the trap coils in my past HQ-1
mini
quad antenna (that for 20,15, 10 and 6), with no apparent loss of performance
or de-tuning.
Over it I then sprayed two acrylic spray layers.
Best regards
Guillermo - LU8EYW.
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