David,
In addition to Vic's and Pete's suggestions, take a close look at the plate
choke for any signs of localized heating, ancient or modern.
I'm flying blind without the schematic and am assuming that the amp has a pi
output network with a RFC at the high Z end for DC feed.
73,
Geoff
GM4ESD
----- Original Message -----
From: "David Douglass" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, June 27, 2006 2:11 PM
Subject: [Elecraft] Slightly off top amp question
Apologies in advance for the off topic question!
I've just bought an old FL-2100B amp to do up, and run with my K2 (I have
the bits and pieces on order for the external keying circuit!!).
When trying the amp out I found that I am getting a pretty high input SWR,
and thought I should Align the input coils on the amp.
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