I am in the process of restoring a Philco 37-620 tombstone ( trapezoid) radio,,, i have searched over every wiring diagram i can find for this radio and cant find this wire on any of them ... the wire appeared to have been cut but hangs loose at the front of the radio close to the on-off switch and the 2 caps. what appears to be a white wire with a green stripe.. runs across the front of the radio to the opposite side and solders into the strip on the third solder connection. any suggestions or knowledge would be greatly appreciated
Royce,
What you need to do is start with what you know. You have a wire that has one end hanging unconnected. The part that you know (or can quickly find out) is, where does the other end of this wire connect? It might be a tube socket pin, or resistor, or something else. Once you have that, look at the schematic (not the wiring diagram) and find that tube pin or resistor. This information alone might be enough to tell you where the open end of the wire should connect. If it doesn't, then start from the tube pin/resistor etc. and keep working backward to find whatever else it/they connect to. Mark up your schematic as you go (make an extra copy just for this), but eventually, you should be able to figure out the connection point for the open end of that wire.
I hope this helps.
Jon
Hi Royce and welcome,
If you could post a picture or two of it we can probably get it sorted. I have a 37-620 chassis on the bench as we speak.
GL