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Tube aviation test equipment

OK everyone, this is a bit different. I bought this in the 1970s from a downtown Toronto electronics surplus shop where it was on consignment. I spoke by phone with the owner who described it as an amplifier used to run AC motors at various speeds to shake the wings on CF-100 fighters for stress testing. The design is consistent with his description. Built in Canada. Lots of Hammond transformers/inductors. It has 4 - 807 output tubes.

I used it as an audio amplifier to drive a subwoofer.

It is very heavy and local pick-up is preferred.

Truly a piece of Canadian aviation history! For sale to a good home for display or parts...
$50 CAD No shipping available unless you are crazy enough to pay for it.
 

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