verical ripple on a Philco 50t1400

[zeno]

Originally Posted by radionut

Got it! must have been a microphonic tube.I changed out all the audio tubes.It took care of that. Had to do another deoxit round on the pins of all of the tubes.Those loctals and miniature pins are a bear.Now, i want to add a fuse for the power trans.........which is the best location(point)? off the switch?

Factory would put it in one of the AC lines before ANYTHING like
chokes & line cap. Nothing there ?? Maybe a fuse wire ?

73 Zeno