02-26-2018, 11:21 PM
I'm really bad in that when working on a project, I sometimes forget to take pictures. I did take some. So here are the high points. I bought this Philco 20 almost a year ago. I did the electronic restoration right away, then set the project aside for several months. The cabinet was in poor condition. As with many of the Philco 20s, the speaker grille was broken and pieces were missing. When the radio came to me, it had a 45 tube and a 50 tube in place of the 71 tubes. The 45 was bad, but the 50 tested very strong. I was able to sell the 50 for the price of the radio, so I only have the cost of shipping in the radio!
Pretty rough cabinet
[Image: https://farm5.staticflickr.com/4751/3856...8ec1_k.jpg]Philco 20 Cabinet by Steve Davis, on Flickr
[Image: https://farm5.staticflickr.com/4695/3856...9ab0_k.jpg]Philco 20 by Steve Davis, on Flickr
[Image: https://farm5.staticflickr.com/4744/3856...a047_k.jpg]Philco 20 Cabinet by Steve Davis, on Flickr
This was a real windfall. A 50 tube in place of one of the 71s
[Image: https://farm5.staticflickr.com/4694/2549...5665_k.jpg]Philco 20 by Steve Davis, on Flickr
The chassis had a couple of modifications done in the past. The blue resistor does not belong.
[Image: https://farm5.staticflickr.com/4624/2549...bd5c_k.jpg]Philco 20 Chassis by Steve Davis, on Flickr
Someone had installed a headphone jack (I cut the wires off before taking the photo). There was no way this could have worked. When the plug is inserted, the jack opened one side of the output transformer to one of the 71 plates. The other 71 would continue to drive the speaker. Also, I just don't like the idea of a pair of headphones wrapped around my head with a couple of hundred volts going through them!
[Image: https://farm5.staticflickr.com/4667/2549...1e0d_z.jpg]Philco 20 Chassis by Steve Davis, on Flickr
More to come
Pretty rough cabinet
[Image: https://farm5.staticflickr.com/4751/3856...8ec1_k.jpg]Philco 20 Cabinet by Steve Davis, on Flickr
[Image: https://farm5.staticflickr.com/4695/3856...9ab0_k.jpg]Philco 20 by Steve Davis, on Flickr
[Image: https://farm5.staticflickr.com/4744/3856...a047_k.jpg]Philco 20 Cabinet by Steve Davis, on Flickr
This was a real windfall. A 50 tube in place of one of the 71s
[Image: https://farm5.staticflickr.com/4694/2549...5665_k.jpg]Philco 20 by Steve Davis, on Flickr
The chassis had a couple of modifications done in the past. The blue resistor does not belong.
[Image: https://farm5.staticflickr.com/4624/2549...bd5c_k.jpg]Philco 20 Chassis by Steve Davis, on Flickr
Someone had installed a headphone jack (I cut the wires off before taking the photo). There was no way this could have worked. When the plug is inserted, the jack opened one side of the output transformer to one of the 71 plates. The other 71 would continue to drive the speaker. Also, I just don't like the idea of a pair of headphones wrapped around my head with a couple of hundred volts going through them!
[Image: https://farm5.staticflickr.com/4667/2549...1e0d_z.jpg]Philco 20 Chassis by Steve Davis, on Flickr
More to come
M R Radios C M Tubes