Dave,
That amp has a tuned input circuit. It may need some tuning or re-design.
The FL-2100 was designed to be 'good enough' to be driven with the
vacuum tube exciters of similar vintage. Most of those exciters could
be tuned to tolerate a 3:1 or even greater SWR, so there was no need to
design the amp input circuit to be close to 50 ohms resistive. As a
result, some re-design or tweaking of the input components should make
it usable with solid state transceivers.
73,
Don W3FPR
David Walker wrote:
Hi folks,
I have decided to try you guys on this reflector for help as a last
DIY resort.
I have an FL-2100Z and it has relatively high SWR on 80, 40, and 20
meter bands of around 1.9 to 2.0. Does anyone having insight in how
to adjust this?
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