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OTL, Output Transformerless Amplifier User Group.

single ended OTL?


There are single ended (SET)amps. A single tube for amplification. 2A3, 45, 300B, 1605, etc.

There are parallel single ended amps. They use two tubes, paralleled, for amplification. Twice the power.

If this is true; a single ended OTL can use only one tube for amplification.

Question. Is the 2A3, 45, etc. a gain stage?

Could a 6SN7 be replaced in one of Ralphs amps by a 2A3? (I know there's wayyyyyy more to it then that, but in theory, could it be done?)

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