04-09-2017, 10:50 PM
Thanks for all the responses! I guess what I thought would be a simple 'few new capacitors and hope it works' is really going to be a bit more... involved.
Ron, you mention that there is still a risk even if I disassemble the transformer covers and replace the rubber coating... would that be if the wiring underneath the paper has already shorted? And amateur question; to check for shorts, am I basically just checking to make sure there is no continuity between windings, and checking the ohms for each winding to make sure they're close to the schematic?
I guess regardless, I should probably check each winding first to make sure I'm not dealing with a bad transformer before I do all this work.
David, thanks for the link to the schematic. It seems very well labeled, and I notice the transformer colors are labeled as well- that will make it easier. Perhaps an uninformed question: each winding has two wires, one for each end, eg. 2 whites for the primary... is there a difference between either of them? Hypothetically, if I connected the one which is on the other side of the power switch, and switched it with the one connected to the other side of the line... would that matter?
I could not see anything moving around inside that 42 tube, so it might be ok. I did manage to break off one of the tube caps while cleaning the others... oops. I think I can re-solder that, maybe.
In the meantime I've been trying to polish the metal dial surround- it's better, not perfect. Just been using metal polish. What I find very cool is that the presets have stickers on them for local stations, eg. WICC, WOR, etc, many of which are still around.
Ron, you mention that there is still a risk even if I disassemble the transformer covers and replace the rubber coating... would that be if the wiring underneath the paper has already shorted? And amateur question; to check for shorts, am I basically just checking to make sure there is no continuity between windings, and checking the ohms for each winding to make sure they're close to the schematic?
I guess regardless, I should probably check each winding first to make sure I'm not dealing with a bad transformer before I do all this work.
David, thanks for the link to the schematic. It seems very well labeled, and I notice the transformer colors are labeled as well- that will make it easier. Perhaps an uninformed question: each winding has two wires, one for each end, eg. 2 whites for the primary... is there a difference between either of them? Hypothetically, if I connected the one which is on the other side of the power switch, and switched it with the one connected to the other side of the line... would that matter?
I could not see anything moving around inside that 42 tube, so it might be ok. I did manage to break off one of the tube caps while cleaning the others... oops. I think I can re-solder that, maybe.
In the meantime I've been trying to polish the metal dial surround- it's better, not perfect. Just been using metal polish. What I find very cool is that the presets have stickers on them for local stations, eg. WICC, WOR, etc, many of which are still around.
