[Lowfer] Testing material for losses

[J. B. Weazle McCreath]

Hello Lowfers,

I've read a number of posts lately where the losses of various possible
coil or antenna forms has been mentioned.  We're all aware of using
the domestic microwave oven to test material for RF suitability, but
wouldn't a better test be at the frequency of the intended use?

I've been thinking of winding a self-supporting coil out of 1/8 copper
tubing with a diameter large enough for test specimens to be slipped
into it.  A basic oscillator circuit like the Hartley could be whipped
together using (gasp) tubes so that 10's of watts or more could be
generated.

73, J.B., VE3EAR - VE3WZL
Solar and wind powered
Lowfer " EAR"  188.830
EN93dr

http://www.hurontel.on.ca/~weazle