Here is an interesting project: How to include a Ten amp chassis inside an old vintage radio from the thirties.

Here is the result .

This little amp allows the customer to pratice at home thanks to the single 8' alnico Jensen speaker. One can also plug an external cab. (ie. 2X12 or 4x12) thanks to the impedance selector (4, 8, 16 Ohms) for band rehearse or stage.

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