Posts: 1,407
Threads: 72
Joined: Oct 2007
City: Linn Creek, MO
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
M R Radios C M Tubes
Posts: 109
Threads: 18
Joined: Mar 2015
City: Ann Arbor, Michigan
I recently did the mod changing the 36 tube to the 77 tube with great success. Originally I had this 19 oscillating pretty well across the band with the original 36 tube. But over time it started dropping out below 1100 kHz or so.
So I made the 77 tube modification, and it works real well now.
That Philco chassis is like an armored tank. I had a heck if a time drilling holes and centering the replacement socket.
I'll be interested in how your adventure with the 6A7 mod works out Steve.
Mark K8KZ
Posts: 1,407
Threads: 72
Joined: Oct 2007
City: Linn Creek, MO
I have had a few projects going so, it has been a while since I have worked on the "Super 19".
I made a few reproduction dogbone resistors and replaced the film resistors that I had installed during the restoration.
[Image: https://c1.staticflickr.com/3/2910/33307...a8c2_b.jpg] 109_0282 by Steve Davis, on Flickr
I had made a reproduction cabinet for the "Super 19" last winter before I started the modification .
[Image: https://c1.staticflickr.com/3/2885/34149...a072_b.jpg] 109_0292 by Steve Davis, on Flickr
[Image: https://c1.staticflickr.com/3/2835/33306...0874_b.jpg] 109_0290 by Steve Davis, on Flickr
Chassis and speaker installed in new cabinet. I used a permanent magnet speaker because I have more chassis than I have original Philco speakers. My thought was since the chassis has been modified and cabinet is a reproduction, I would rather save my original speakers for other projects.
[Image: https://c1.staticflickr.com/3/2870/34165...977b_b.jpg] 109_0312 by Steve Davis, on Flickr
[Image: https://c1.staticflickr.com/3/2850/34165...99ec_b.jpg] 109_0305 by Steve Davis, on Flickr
[Image: https://c1.staticflickr.com/3/2852/34165...18bc_b.jpg] 109_0308 by Steve Davis, on Flickr
Steve
M R Radios C M Tubes
Posts: 16,305
Threads: 569
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Speechless.
Magnificent job, Steve.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 599
Threads: 24
Joined: Jan 2014
City: Edmonton AB CA
Man I sure do like your cabinet work!
Gregb
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Hey...
I recently traded my nice Philco 19B, and then acquired another 19B from Kirk.
So...
This new acquisition will become a Super 19 as well!
When I start the work (and it will be awhile), I will start a new thread on it...
--
Ron Ramirez
Ferdinand IN
Posts: 1,407
Threads: 72
Joined: Oct 2007
City: Linn Creek, MO
Quote:When I start the work (and it will be awhile), I will start a new thread on it...
Ron, I will be waiting.
Steve
M R Radios C M Tubes
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