Some versions of the older Henry amps were rated for 2 kw pep out on ssb.? But they also had improved cooling and also a bigger B+ supply.?
To getter older tubes, on the drake L7,? you can use the lower (1900 vdc) position, and temp shunt out any bias ( shunt out any series diodes used for bias)...and then apply a bit ( a few watts, 10-20 watts) of drive, and maladjust the tune control to put the tank circuit off resonance...such that both tubes show some colour.?
