>> When nichrome suppressors are used, is there a resistor in parallel with
>> the inductor?
>> 73
>> 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
decreasing freq.
>If you take the suppressor design Rich sells, a hairpin, it actually
(key-word)
>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
coil-inductor L-supp.
>.....
cheers, Tom.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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