48-482 - Printable Version

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+--- Thread: 48-482 (/showthread.php?tid=4299)

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48-482 - LASJayhawk - 02-10-2012

OK I got a 48-482 on flea-bay. The seller said he thought the speaker had been changed (I'm guessing the 2 wire nuts in the speaker leads didn't look OEM) and it's obvious that the loop antenna is out of a much smaller set like a 42-250.

So the speaker has been replaced with a PM speaker and the 2 field coil lines are cut where they come out of the chassis. I have not pulled it apart to inspect the work done cuz I know I wont like it.

So, would anybody like to take a WAG as to a good starting value for a resistor to replace the speaker field? I'm assuming I need to get 1/2 way close, then get the chassis running, then adjust the resistance to get the correct bias on the audio tubes. Good plan or better idea?

Thanks, John

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Re: 48-482 - rghines1 - 02-11-2012

Looks like 1100 ohms on the schematic on nostalgiaair. Doubt you will find a 1100 ohm resistor, so would recommend a 1200 ohm resistor at least 20 watts. Richard

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Re: 48-482 - LASJayhawk - 02-12-2012

You haven't lived until you have restrung a dial cord on one of these.

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