[DavGoodlin]

I have a Zenith 6S656 that came to me with a shorted 6X5 and fried transformer that popped like that. I was not lucky because mine did heat up after re-capping the set. Luckily I found a found a trans with 6.3 volts and 500 VCT in a junky tuner in my heap. I did not need the separate 5 volt winding and, of course its fused now!

A question about tubes: My Philco 42-1009 needs a 5Y4 tube. I have some 5Y3's, and it looks like i can use one if pins 7/2 3/4 and 5/6 are swapped around. Does anybody know why there are rare tubes like the 5Y4 that are simply variations of popular types???