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Never seen a 12AU7 in an RF circuit

-That's a new one on me and I've been in the service industry since 1974.

The primary use of the 12AU7 is actually in audio. The tube is modified from the 6SN7/6CG7. Most of the applications I see are in guitar amps in the driver stage where high gain is not required but current is.

You don't have to run NFB on a 12AU7 either. You just need to run it biased correctly.


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  • Never seen a 12AU7 in an RF circuit - Ralph 09:22:03 10/19/15 (0)

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