GEORGE WALLNER wrote:
>Would silver plating the conductors make a practical
>difference? There is no significant heating of the
>conductors now with full legal power.
>
Before you consider silver plating a coil, here is something you should
know. At 2 MHz the RF skin depth in silver is 0.00178 inches. You need
about three skin depths of plating, that's about 0.0053 inches. If you
just walk into a plating shop and say, here silver plate this, you will
get about 0.00002 inches. "Highly polish-able" grade silver plating is
0.001 inches and costly. You need 5 times that. It's going to be
expensive. Most ham coils used at low frequencies are silver plated
just for appearance purposes.-
---------------------------
In marine transmitters all coils I have seen were silverplated. My
understand is that
2-3 mikron was used, whatever that is in medival terms.
73 Rag LA5HE
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