[TenTec] Need help with AF-Power switch - Delta 580

[heimbach]

A couple of nights ago, this combination switch/pot gave up the ghost.
It had been noisy for a few weeks, and failed rather spectacularly.  The
pot is still good, but the switch contacts are vaporized.  Short of
jumping out the switch and using the power supply switch for "OFF/ON",
I'm at a loss.

A call to Paul Clinton of Ten-Tec yielded only an apology, as Ten-Tec no
longer stocks this switch or even has a suggestion for a replacement.

Does anyone have a junker around and perhaps would sell me a switch? 
Any other suggestions for repair/replacement will also be greatly
appreciated.  

Thanks,

Karl - W5QJ

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