01-02-2020, 07:44 PM
Hi Andy and welcome,
Grew up in MD abt half way between Baltimore and Washington.
>Not sure if I need to check anything else before doing the alignment?
I would check the voltages (plate and screen) around the rf and if stages and see if there are any anomalies. Another critical one is the plate voltage on the osc (76 tube). Make sure you have the shields on, didn't reverse the grid caps on the rf amp/mixer tubes and that the 77's and 78's are in the proper places they look the same. Is the shadow meter coil open?
There's a small chance that the alignment may stop the squealing issue but want to see if all the other circuits are more or less working, at present they aren't.
Grew up in MD abt half way between Baltimore and Washington.
>Not sure if I need to check anything else before doing the alignment?
I would check the voltages (plate and screen) around the rf and if stages and see if there are any anomalies. Another critical one is the plate voltage on the osc (76 tube). Make sure you have the shields on, didn't reverse the grid caps on the rf amp/mixer tubes and that the 77's and 78's are in the proper places they look the same. Is the shadow meter coil open?
There's a small chance that the alignment may stop the squealing issue but want to see if all the other circuits are more or less working, at present they aren't.
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
