Hi Gary, as you are monitoring the match with a "Jim and Lech" match indicator, I doubt there is much problem there. I have had another thought, which refers to the physical wiring against the "schem
Gary Usually core saturation will cause the over current protection to trip and save the finals... I figure you have an SWR problem... I haven't had time to read the thread forming but that seems lik
Gary That's strange. I would be happier with some 50A FETs, I rather like the IXYS IXFH58N20 but the ones you are using should be OK... I suppose the FETs are well clamped down with not too much heat
Hi Gary, I have exchanged a several e-mails with Fritz Rabb, who is cordinating the ARRLs 500kHz experiment. He has done extensive work on high efficiency PAs, and has co-authoured papers with Nat So
Gary. Have you any SWR protection on the TX? I would doubt if the cores would saturate so quickly that you didn't notice the heat and drop-off in power before it went pop! SWR protection is essential