[Racal] MA79

[Don Vosper]

Trying to get some life out of my MA79 once again. I would have thought it would be easy to get 100mW with so many valves.
Been round in circles a few times. I'm looking at the 2-3 meg band-pass filter. If I inject a 2-3 meg signal in place of it I get a reasonable carrier output from the MA79. The filter doesn't seem to be very flat. Anyone done any work on these? I wonder if there is a procedure to realign this filter.
Don, m5aky 
Bristol UK