06-24-2019, 11:12 PM
>Do you know where I can get a new speaker for my Philco 42 PT-7?
In a word no. Use to be folks would repair them if the field coil was good if not it would hit the trash bin. Eletrodyamic speakers haven't been used since the end of WWII. Repair meaning replace the cone (the paper part) Now the paper parts are difficult to find. I don't know of anyone who does it.
Now spkr are permanent magnet spkr which don't use a fc but you need the fc in your set to filter the high voltage. There is a way around it but you have to increase the value of the two 20uf caps to 47uf and use a resistor to conduct as the fc would.
>I’m just curious if it matters what color wire you use to rewire?
The chassis doesn't care but there is the R radio M manufactures A association. They have a standardize color color for most of the wiring. I don't know that Philco abides by it though.
In a word no. Use to be folks would repair them if the field coil was good if not it would hit the trash bin. Eletrodyamic speakers haven't been used since the end of WWII. Repair meaning replace the cone (the paper part) Now the paper parts are difficult to find. I don't know of anyone who does it.
Now spkr are permanent magnet spkr which don't use a fc but you need the fc in your set to filter the high voltage. There is a way around it but you have to increase the value of the two 20uf caps to 47uf and use a resistor to conduct as the fc would.
>I’m just curious if it matters what color wire you use to rewire?
The chassis doesn't care but there is the R radio M manufactures A association. They have a standardize color color for most of the wiring. I don't know that Philco abides by it though.
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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