Yesterday, 01:26 PM
I have changed the title of this thread from Philco 91 Schematic.
I have gone through most of the cap replacements. I am working on the replacement of the E caps and wiring of the output stage. There is a capacitor (#47) in the plate circuit of the output tubes. Schematic says it is a .001. What I think is the cap is a part mounted to the back of the chassis. It looks like compensating capacitor but without the adjustment screw. Is there some reason why it is not just a plain paper cap or one in a bakelite block?
Something seriously must have have happened to this radio as the speaker field coil and output transformer are open and the voice coil is pushed way out therefore damaging the spider. The speaker is useless and I will be using a permanent magnet speaker and Hammond output transformer. Also just about every resistor is way out of tolerance and the canedohm resistor has an open section (2-3).
I have gone through most of the cap replacements. I am working on the replacement of the E caps and wiring of the output stage. There is a capacitor (#47) in the plate circuit of the output tubes. Schematic says it is a .001. What I think is the cap is a part mounted to the back of the chassis. It looks like compensating capacitor but without the adjustment screw. Is there some reason why it is not just a plain paper cap or one in a bakelite block?
Something seriously must have have happened to this radio as the speaker field coil and output transformer are open and the voice coil is pushed way out therefore damaging the spider. The speaker is useless and I will be using a permanent magnet speaker and Hammond output transformer. Also just about every resistor is way out of tolerance and the canedohm resistor has an open section (2-3).