08-22-2025, 03:49 PM
Hey Pete,
The two end leads of the primary winding goes to the pin 2 of the two 42 tubes (plate pin). The common color code for these wires are brown and blue, red is the center tap which is connected the field coil. Philco has their code for wiring. The secondary are two stiff wires protruding from the lower side of the opt as I remember it. Here's something you'll probably need: https://philcoradio.com/library/index.ph...34-44-144/ As for a better diagram I don't know what you've seen but this one is pretty good: https://philcoradio.com/library/download...%20165.pdf There's not a lot of choices as they all come from the same source.
The two end leads of the primary winding goes to the pin 2 of the two 42 tubes (plate pin). The common color code for these wires are brown and blue, red is the center tap which is connected the field coil. Philco has their code for wiring. The secondary are two stiff wires protruding from the lower side of the opt as I remember it. Here's something you'll probably need: https://philcoradio.com/library/index.ph...34-44-144/ As for a better diagram I don't know what you've seen but this one is pretty good: https://philcoradio.com/library/download...%20165.pdf There's not a lot of choices as they all come from the same source.
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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