[MrFixr55]

Try to play the radio. Hum should be quite low..If you can tune in a station, it should be loud. If the volume is low, check or replace the 50L6. If the tube's emission is low, this could cause the voltage to be high. Had this happen to me on a Gloritone Model 26. Low volume, voltage 50V too high. Replaced the output tube (a 45), problem gone. Plenty of output, correct voltages.