12-19-2014, 03:13 PM
Murf
The tone control switch has to be rebuilt as it has capacitors (part 31) that have to be replaced.
The slider is grounded, so the capacitors (in order that they are, the values are here)
http://philcoradio.com/tech/images/90b.jpg
are connected to the common wire that goes to the plate of the 47 tube, and the other end of each is wired to the contacts of the switch to which the slider connects in each position.
So you only should have one wire coming out of the regulator. (the other is GND)
Bite off the old wires, pull the potted part out (it is wrapped in fish paper), separate and discard the caps and save the paper.
Then put the paper back, place your caps inside, connect them together on one side and solder to the case, route the other wires (use thin insulated wire soldered to caps' leads), solder to contacts, pot with hot glue.
This is it.
I showed it in my 90 restoration.
connect your caps with
The tone control switch has to be rebuilt as it has capacitors (part 31) that have to be replaced.
The slider is grounded, so the capacitors (in order that they are, the values are here)
http://philcoradio.com/tech/images/90b.jpg
are connected to the common wire that goes to the plate of the 47 tube, and the other end of each is wired to the contacts of the switch to which the slider connects in each position.
So you only should have one wire coming out of the regulator. (the other is GND)
Bite off the old wires, pull the potted part out (it is wrapped in fish paper), separate and discard the caps and save the paper.
Then put the paper back, place your caps inside, connect them together on one side and solder to the case, route the other wires (use thin insulated wire soldered to caps' leads), solder to contacts, pot with hot glue.
This is it.
I showed it in my 90 restoration.
connect your caps with
