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OTL, Output Transformerless Amplifier User Group.

RE: do you have enough tubes to make sure one is complete?

I actually found (just) enough tubes to outfit both amps. I thought I was in fat city because the guy who sold them to me included a number of extra tubes, each lovingly wrapped in bubble plastic. Turns out, most of those extra tubes were defective.

I am going to proceed roughly the way you outlined. I am just curious how the OTL works. What If I had only two tubes. Would the output impedance be outta sight?


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