[Lowfer] Coil & Variometer setup???

[Mike WE0H]

Nope, homebrew coil/variometer setup. I have it finished now. It is for 
a 507kc vertical. Would be nice to have a flat ribbon wire variometer. 
That would be very low loss.

Mike
WE0H


Dave Brown wrote:
> It's not a Johnson unit by any chance? I had a number of them here 
> (complete with dog box) I acquired surplus some years ago but all have 
> found good homes in the amateur LF community. They had a tuning 
> variometer around a third of the way up the coil and there was a 
> separate coupling variometer that it sat on-latter only had a few 
> turns on the fixed and rotary coils. The main coil was around 800-900 
> microhenries and made of flat copper strip - the coil was around 10 
> inches diameter.
> Dave, ZL3FJ