> // The statement that "or a parallel tuned network" should be
> questioned. A parallel tuned input will work ok only when the Q
> requirement is met and the average cathode-Z is close to 50-ohms.
Or the old Alpha trick of using an un-un transformer with parallel tuned
networks (when adding a second 8877 in the 77DX) can be employed.
This is much easier than trying to tweak a pi network for each band when
converting a 50 ohm tuned input to >50 ohms out. Only one part needs
to be installed. (the un-un) This will also work with an existing pi network
tuned input assembly. Just wind an un-un for the desired step-up/down
ratio and solder it in.
(((73)))
Phil, K5PC
(((73)))
Phil, K5PC
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