11-24-2012, 07:46 PM
Have you verified that ALL the cloth resistors are good? This is one of the most common problems with the AKs from that period. The 670 ohm flex between the low end of your volume control and ground would be a prime suspect.
Agree with Terry problem may be vic 24 control tube. Make sure that someone did not replace the 24 with a 35/51 in the past. These tubes can replace each other in some circuits and not in others. Additionally check/confirm the 550 ohm volume control itself. As a former "AK guy" I probably replaced the volume control on 25% of the AKs from this period that I worked on.
I would not read too much into what the voltages are supposed to be IAW the schematic. These sets were not precision pieces of equipment.
Good luck and keep us posted. Between "wanna-be technicians" like me and real deal experts like Terry, you should find what ails your set.
Agree with Terry problem may be vic 24 control tube. Make sure that someone did not replace the 24 with a 35/51 in the past. These tubes can replace each other in some circuits and not in others. Additionally check/confirm the 550 ohm volume control itself. As a former "AK guy" I probably replaced the volume control on 25% of the AKs from this period that I worked on.
I would not read too much into what the voltages are supposed to be IAW the schematic. These sets were not precision pieces of equipment.
Good luck and keep us posted. Between "wanna-be technicians" like me and real deal experts like Terry, you should find what ails your set.
