07-11-2013, 08:19 PM
Probably not. Pull out the 7Y4 and turn on the set and measure the AC voltage between the chassis and pin3 and then pin 6 of the 7Y4. Should see about 300vac from each of those pins to the chassis. If you do and the other tubes light your power trans is good. Do not try to operate the set with the 7Y4 till the filter caps have been replaced!
Terry
Terry