On 2013-04-16, at 10:43 AM, N1BUG wrote:
>
> The present input configuration is a 50 ohm RF load resistor with a .01 cap
> coupling to the cathode. I am trying (again) to figure out some practical
> method of adding tuned input to this amp but I am at a loss. Lack of space
> and switching problems are problematic.
Hi Paul,
Make an OUTBOARD tuning arrangement of pi-tank coils---one per band,
switch-selectable, mini-box mounted---similar to what was shown years ago in
the ARRL book, "HINTS & KINKS".
~73~ de Eddy VE3CUI - VE3XZ
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