01-27-2016, 01:58 PM
Finished the recap...
[Image: https://www.dropbox.com/s/cpe1xkp8b5dqg7....jpg?raw=1]
Got the variac out and brought up voltage slowly....nothing....a little more.....nothing... nothing...arrrgg. No tubes lit up so first suspect was filament heater in one of the tubes (yes I did check them all before but...perhaps I missed one?) and that was what it was, the 14C7 tube was replaced and the radio was playing. Did an alignment and all was good most of the time but the modulation tone would cut out from time to time as I aligned it, like a loose connection. After some poking around I think I found the culprit
[Image: https://www.dropbox.com/s/v4mlrek6wa8aak....jpg?raw=1]
Yes I know the cap looks crappy and I thought about pulling its except it not a nice Philco tuner held in there with a few screws, its a Zenith tuner and they had some type of soldered on/fold over tab arrangement. I figured I should get it running first and then tackle that if there was a problem. If there was ever unobtanium I think this might be it. Looking for suggestions on this. I'm thinking I could
a) add a new replacement trimmer to the circuit under the chassis some how
b) try to get a blob of solder to stick on the two pieces to hold them together
c) get a replacement tuning cap from the zenith store down the street....oh that went out of business a few years ago....maybe a junk chassis if I can find one (update: maybe I can snag the 6D-614W that's on the bay at the moment. Its got the same tuning cap.)
Help?
[Image: https://www.dropbox.com/s/cpe1xkp8b5dqg7....jpg?raw=1]
Got the variac out and brought up voltage slowly....nothing....a little more.....nothing... nothing...arrrgg. No tubes lit up so first suspect was filament heater in one of the tubes (yes I did check them all before but...perhaps I missed one?) and that was what it was, the 14C7 tube was replaced and the radio was playing. Did an alignment and all was good most of the time but the modulation tone would cut out from time to time as I aligned it, like a loose connection. After some poking around I think I found the culprit
[Image: https://www.dropbox.com/s/v4mlrek6wa8aak....jpg?raw=1]
Yes I know the cap looks crappy and I thought about pulling its except it not a nice Philco tuner held in there with a few screws, its a Zenith tuner and they had some type of soldered on/fold over tab arrangement. I figured I should get it running first and then tackle that if there was a problem. If there was ever unobtanium I think this might be it. Looking for suggestions on this. I'm thinking I could
a) add a new replacement trimmer to the circuit under the chassis some how
b) try to get a blob of solder to stick on the two pieces to hold them together
c) get a replacement tuning cap from the zenith store down the street....oh that went out of business a few years ago....maybe a junk chassis if I can find one (update: maybe I can snag the 6D-614W that's on the bay at the moment. Its got the same tuning cap.)
Help?
