[Hallicrafters] SR-400 RF Output ???

[Jim Brannigan]

Power output should be about 60% of DC input.

Jim
> I'm hoping someone familiar with the proper operation of a SR-400 Cyclone 
> transceiver (paired up with a PS-500A-AC supply) can give me an idea of 
> how much full rf output (not input) in watts in the CW position is 
> "normal" into a 50 ohm dummy load. I've been fiddling with one that has a 
> new pair of, idle plate current matched and neutralized, 6JH5 finals and a 
> good driver tube.
>
> Best I can get on 80/40/20 meters is 150 watts CW output @ 350ma plate 
> current. Output too low? About right? PS-500A-AC has been completely 
> rebuilt and all voltages (800vdc, 280vdc, -125vdc) & idle plate current 
> (70 ma) are correct. All caps and resistors in the PA circuit are OK. I'd 
> really appreciate some expert opinions/advice before I go any further.