05-02-2011, 10:14 AM
The 89's are nice radios. I sold mine a few years ago and only got around to replacing it a week ago with the 1933 version.
You almost certainly have the last version. If your circuits don't match the schematic, go to Ron's tech site (http://www.philcoradio.com/tech/89evol.htm) for a nice clean modern schematic. Click on the schematic you want and you will get a modern readable schematic to work from.
The 89 that I just acquired had been recently recapped but the resistors were original (you will find that your resistors above 50K are way out of tolerance or open). Two tube shields and their mounts were also missing which is great if you like to listen to squeals and howls. The audio tube socket was so intermittent that I had to replace it even after cleaning, polishing, and pinching the contacts.
Before long you will be asking about those tar blocks and the multi-cap can; DON'T THROW THEM OUT! They all get restuffed and it's not difficult. Have fun- and always come back with questions.
You almost certainly have the last version. If your circuits don't match the schematic, go to Ron's tech site (http://www.philcoradio.com/tech/89evol.htm) for a nice clean modern schematic. Click on the schematic you want and you will get a modern readable schematic to work from.
The 89 that I just acquired had been recently recapped but the resistors were original (you will find that your resistors above 50K are way out of tolerance or open). Two tube shields and their mounts were also missing which is great if you like to listen to squeals and howls. The audio tube socket was so intermittent that I had to replace it even after cleaning, polishing, and pinching the contacts.
Before long you will be asking about those tar blocks and the multi-cap can; DON'T THROW THEM OUT! They all get restuffed and it's not difficult. Have fun- and always come back with questions.
Pete AI2V
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