| All right, guys: I will give up on the idea of repair. Now, the next question is can any of you tell me the resistance measurements for the field coils in this radio? I have enlarged the schematic and it looks to me that the 12" speaker field coil is 1100 ohms and the 10" is 4050 ohms. Does anyone have a better copy to verify this? I have read about the problem of increased hum when the EM speaker is replaced with a PM one due to the loss of the choke function of the field coil if one simply puts a resistor in it's place. So I'm assuming a better option would be to use a choke and a resistor (if needed to get the right resistance. Can anyone recommend a specific choke either from radio daze or AES? Thanks a lot. Mark from Kalamazoo |
Mmakazoo 
Doug Criner 