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OTL preamp

Posted by Ralph (M) on June 22, 2017 at 09:28:40

In Reply to: RE: stupid OTL question posted by waterfall on June 21, 2017 at 15:42:08:

Most preamps are OTL in that they are Output TransformerLess.

IOW, some preamps do indeed have output transformers.

OTOH, a preamp that does not also have an output coupling cap is a bit different. Since our output circuit for our amps allowed for a direct-coupled circuit, we applied the same circuit to the output of our preamps, so no output transformer and no output coupling cap.

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