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RE: That's a great insight into circlotron performance

Yes, it's a circlotron amp.

I'm not sure transformers are really a problem. Good output transformers can have hi-frequency bandwidth up to 200kc (Harmon Kardon Citation 2 for example) so the idea that output transformers are a bad thing is overblown. IMO.

Transformers let you match a low impedance speaker voice coil to your output tube. That's a good thing.

I like the circlotron output circuit. It's different and that makes it fun.

But I want the load line to be more horizontal to keep the distortion low.
(that's where the output transformer comes in)

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

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