[AMPS] 2000 ARRL Handbook question
Wed, 2 Aug 2000 09:39:11 -0700
>> When nichrome suppressors are used, is there a resistor in parallel with
>> the inductor?
>> Peter G3RZP
>Actually Peter, if you look at the suppressor Wes tested it was
>identical to the AL80B suppressor except one was nichrome and
>one was regular tinned copper wire.
>There was no great difference between them at VHF, but at HF the
>nichrome had much lower Q (as would be expected).
€ Tom -- your theory that the resistance of nickel-chromium alloys
Increases with a decrease in frequency is not supported by any published
measurement. Every other known conductor exhibits less resistance with
>If you take the suppressor design Rich sells, a hairpin, it actually
>has higher VHF Q than the stock suppressor, when they are
>installed in the anode system.
I don't see how this is possible. There is not much difference in the
length of the wire used in a U-inductor (hairpin) L-supp and a
- Rich..., 805.386.3734, www.vcnet.com/measures.
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