SHED RADIOS

SHED RADIOS

I don't repair radios for the general public. There's just too many reasons for not doing so to go into it here. However I do sort of pick and choose when asked to fix up an old radio. It just depends. I talked with a person about fixing a Philco Model F-1802 console he had bought for $15.00 a few years back. He said it was in very good shape and he wanted the phonograph removed as he wanted to play a CD player through it. I looked up the SAMS Photofact Data on it and told him I would look at his console and go so far as check the transformers. It dates to 1958/9. When he arrived with the set it was in nice condition. Except it had no back, no line cord, and all four tubes for the amplifier were missing! He didn't know anything about that. He bought it that way. You think someone needed 2-6V6, a 12AX7, and a 5y3? With that problem for him and he so wanting to get it fix I consented to give it a try. I worked on the amplifier first because I could run a CD player without the tuner working if need be. He wanted that CD going. The power transformer was good and everything went ok on replacement of the capacitors. I put some good tubes in, hooked up CD player, speaker and turned it on. LOW VOLUME!! Don't tell me I got to troubleshoot this thing. I'm a firm believer in doing voltage checks. I looked at the schematic and started doing the checks. No plate voltage on pin 6 of the 12AX7 AF amp. Now I'm real good at reading color codes. The schematic calls for a 270K resistor R38 at pin 6 but it don't start with red but has a note. So the parts list says some versions use a 100K resistor. I look back at resistor R38, hey it's ok. But I'll measure. WOW it's a little over 1MEG! Wait a minute...green. "Bad boys, man! I removed the 1Meg and replaced with a 100K and the amp just busted out with plenty of sound.The tuner nor the amp has ever been removed from this set. It looks like someone reached in the wrong bin during assembly. It happens. I wonder if original owners ever noticed the volume was too low. I finished up with the tuner and reassembled the set and got a very happy person. It sounds great. Each to his own but if I were to keep such a set I would have kept the record player. It is a nice looking player. He didn't care. Besides he didn't have any records. Here's some pictures. I need to get a better camera. Could be them old bumblebees will help pay for one.