Quote:
Originally Posted by maxhifi
I like the cabinet!
Go to your local dollar store and get 10 9V tranaisistor radio batteries to use in series for B+, and some D cells for the filaments. The 9V batteries can be clipped together in series using their own terminals, and then the first and last ones can have wire leads with alligator clips soldered to them, which you can connect to the radio's power connector. For the A battery I'd use 2 D cells in parallel.
Before you apply power you may want to do a basic replacement of capacitors, especially any electrolytic capacitors, the AVC filter, and the audio grid coupling capacitors.
The reason these radios sound worse than normal radios, is the audio output stage is necessarily very low powered, so the speaker is designed for efficiency rather than sound quality. They can be okay though. I like yours because of the fancy grill design and late 30s deco cabinet.
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The radio might not work because the filament voltage should be 2 or 2.2 volts. Those tubes are probably a little tired and need the proper voltage.
I have a Coronado model 550 tombstone made by the same company, but using a single 33 tube in the audio output. It originally had a magnetic speaker that sounded lousy. I installed a PM speaker and output transformer.
Not much audio output, but doesn't sound bad.
