[Amps] adjusting trimmers on amp input/output

[gudguyham]

If you are talking about the trimmers other than the input network, the others are for nulling the pass thru swr.  It tunes out the reactance of the relay.  Just null the swr with the trimmers.


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On Saturday, March 27, 2021, 1:06 PM, John Keating <john.keating at outlook.com> wrote:

The QRO HF2000 amp has 25-150pF trimmers to ground on both the RF input and RF output.

How would one optimize the settings on those?

Are those intended to tune out the reactance of external cabling, or something inside the amp?

73, John
AI6LY
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