[Elecraft] OT: FL-2100Z input SWR

[Don Wilhelm]

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?
>