Cross-posted in the amplifier forum as well. I'm looking for a manual for my Ramsey PA-20 220 MHz amplifier. Can't seem to find that one. I found a manual for the 2m PA1, and it discusses how to convert from Class C to Class B operation. Would be nice to see if the PA-20 can do the same, and also what the drive and output is for it. Some sites are saying 20-25w out, others saying 10w.