[Amps] Tube Upgrade for Motorola 2 Meter Amp

[Steve Berg]

Years ago when I was a service tech, my boss gave me a really nice 1963 
vintage Motorola 1 range tube type quarter kilowatt station.  The final 
deck uses a pair of 4-125 tetrodes in push pull configuration.  As I 
recall, the plate supply is about 2200 volts.  If I were to convert this 
to class AB1, and regulate the screen voltage, I would get barely enough 
power to be noticeably louder than my 160 watt Mirage brick.  I would 
like to figure out some way to make this into a usable 2 meter weak 
signal amp.  The tuned input and output lines are there, but I need 
better tubes.  What sort of changes might I consider to get this clunker 
back on the air where it belongs?

Steve WA9JML