[Elecraft] KX3 Behavior with Brick Amplifier

[Richard Lawn]

I took an old Palomar solid state "broadband" amp and added a band pass
filter to the output to clean things up. I then tried it with my KX3 and to
my surprise the SWR was showing high at the KX3. The filter alone attached
to a dummy load shows a near perfect 52 ohms so the problem isn't on that
end of the chain.  If I use an inexpensive littte 5 watt 40 m QRP CW rig to
drive the amp everything seems perfect with nearly 100 watts out of the
amp.Should I assume that my idea to recycle an old CB amp was just a bad
idea and cut my losses by throwing it away?  Or am I missing something?

Rick, W2JAZ