[Texasrocker]

I always use this rule for checking high-voltages on the rectifier sockets that have a AC Tranformer on chassis. #1 , BE CAREFUL in getting your voltage measurements!! #2, measure across both pins of high voltage and write down the total hi-volts measurement. Then, carefully check each side of the 2 hi voltage tube socket-pins (one at a time) with negative test probe to chassis ground with meter. Each separate Hi Voltage reading from chassis ground from each the separate "plates" of the rectifier should read the same back to chassis ground, and add up to the total of the 1st reading directly across the plate-pinouts! Then, consult your RCA tube manual and read specs of the #80 tube, to see if voltages are within specs. Everyone involved in servicing vintage radios needs a "tube manual" for tube info on their workbenches indeed!! Randal