06-07-2023, 09:26 PM
I'm not sure if the 144B had the 4 pin spkr plug on the back of the chassis. Some of the larger sets didn't like the early 16B's. They were wired straight into the chassis with no plug. Bit of a hassle to service and it's not noted on the diagram.
It's much easier to sort w/the chassis out of the cabinet. The top of the winding on the output transformer goes to pin 2 of the 42 tube. The bottom winding of the output transformer goes to pin 3 of the 42 tube and is connected to field coil at the transformer. The 3rd connection goes to pin 1 or 4 (doesn't matter) of the 80 tube. It's connected to the field coil.
If it does have a plug then it's a bit of work carefully remove the 2 brass rivets and then use an ohm meter to check that the connection are wired properly. I found some black pop rivets that work well. I'm too lazy to use the brass ones and a punch.
https://philcoradio.com/library/download...%20193.pdf
You'll have it working in no time!
It's much easier to sort w/the chassis out of the cabinet. The top of the winding on the output transformer goes to pin 2 of the 42 tube. The bottom winding of the output transformer goes to pin 3 of the 42 tube and is connected to field coil at the transformer. The 3rd connection goes to pin 1 or 4 (doesn't matter) of the 80 tube. It's connected to the field coil.
If it does have a plug then it's a bit of work carefully remove the 2 brass rivets and then use an ohm meter to check that the connection are wired properly. I found some black pop rivets that work well. I'm too lazy to use the brass ones and a punch.
https://philcoradio.com/library/download...%20193.pdf
You'll have it working in no time!
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 it!
Terry
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