04-05-2017, 12:46 AM
This evening I started making some dog-bone resisters for the "super 19". While working, I had the super tuned to WSM 650. I had a strong signal, it was coming in loud and clear. After a few minutes, the radio developed a crackling/ frying sound. Using an insulated alignment tool, I started poking around. When I touched the bias resistor, the radio stopped playing. When I pushed on terminal on the end opposite the grounded end, I could see a tiny arc where the terminal wraps around the resistor. I replaced the resistor with one from a parts chassis. Now she is playing beautifully again. There are still a few things I need to do. Beside the dog-bone resistors, Need to install the mounting brackets for two of the tube shields. Right now the 75 is the only tube with a shield. I will be installing the "Super 19" in a reproduction cabinet that I finished about a month ago.
If you ever run into a stubborn, uncooperative Philco 19, 71, 89 or 91 that the oscillator refuses to work, Ron's "super" mod IS the solution!
listening to Eddie Stubbs on WSM
[Image: https://c1.staticflickr.com/3/2947/33004...36ec_b.jpg]109_0271 by Steve Davis, on Flickr
Steve
i
If you ever run into a stubborn, uncooperative Philco 19, 71, 89 or 91 that the oscillator refuses to work, Ron's "super" mod IS the solution!
listening to Eddie Stubbs on WSM
[Image: https://c1.staticflickr.com/3/2947/33004...36ec_b.jpg]109_0271 by Steve Davis, on Flickr
Steve
i
M R Radios C M Tubes