03-07-2018, 11:24 AM
Yes, there were production run changes. The Sams mentions a few in the notes below the parts list, but not all.
Here is the original Philco service manual plus some suplements.
https://drive.google.com/open?id=1FiqZeM...U8HvsOTo0t
I think you have gotten the TV to function. Getting a raster on the screen means all the critical components are OK. You're not likely to get a clear, stable image or sound without replacing the old caps. For example it looks like you are lacking height. That's almost guaranteed to be because of bad (leaky or open) electrolytic caps in the vertical output circuit.
Resistors are typically less of an issue. They can be way off but the set will till work OK. Given the hassle in unmounting the main board, I think it's easiest to just replace all the paper caps at once while you;ve got it out. Also the tube sockets are prone to metal fatigue cracks. Especially the 9 pin ones.
Here is the original Philco service manual plus some suplements.
https://drive.google.com/open?id=1FiqZeM...U8HvsOTo0t
I think you have gotten the TV to function. Getting a raster on the screen means all the critical components are OK. You're not likely to get a clear, stable image or sound without replacing the old caps. For example it looks like you are lacking height. That's almost guaranteed to be because of bad (leaky or open) electrolytic caps in the vertical output circuit.
Resistors are typically less of an issue. They can be way off but the set will till work OK. Given the hassle in unmounting the main board, I think it's easiest to just replace all the paper caps at once while you;ve got it out. Also the tube sockets are prone to metal fatigue cracks. Especially the 9 pin ones.
