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Originally Posted by David Roper
If you opt to simply replace the speaker, you'll end up wondering what to do with all those extra wires. Your radio's speaker (like virtually all of that era) has an electro-magnet inside the bell which is called a field coil.
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Good point.
Here's the schematic:
http://www.nostalgiaair.org/PagesByM...7/M0024987.pdf
I know the field coil can be replaced with a small 6V transformer and tuned with one or two caps of around .01uf in value if a _proper_ choke isn't available. Or if the OP is somewhat adventurous and knows about solid state circuits, a transistor or MosFet can also be used wired as a capacitance multiplier.
Z-