Philco 37-610 tombstone restoration
Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
So where is the 80 tube???
Looks like you have a 5Y4. Electrically they are the same but the pin out is different.
80 tube 5Y4 tube
pin 1 = pin 8
pin 2 = pin 3
pin 3 = pin 5
pin 4 = pin 7
Recheck resistances using these pin #'s
pin 1 of the 5Y4 has no internal connection so it must be used as a tie point or you are miscounting them. from the bottom view count clockwise top view count counter clockwise.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 04-07-2018, 01:33 PM by Radioroslyn.)
Messages In This Thread
RE: Philco 37-610 tombstone restoration - by Radioroslyn - 04-07-2018, 01:25 PM
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