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RE: If you are reading Crowhust

76.90.100.230

Tre'

In Reply to: RE: If you are reading Crowhust posted by Ralph on June 21, 2024 at 09:25:57

"Please note that the phase is reversed so you will have to reverse the phase at the output transformer connection to the power tubes (otherwise you'll have positive feedback). "

Won't that cause problems? Because of the winding capacitance, I thought a transformer was designed for one particular end of the primary winding to be commented to the B+ supply (AC ground) and one particular end of the secondary to be connected to ground?

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

Follow Ups:

RE: If you are reading Crowhust - Paul Joppa 07:12:35 06/22/24 (1)
Crowhurst is thinking of push-pull, where the CT of the output transformer is connected to B+. So you can swap the plate connections.

For 2-stage SE amps, you are right. You must either add a stage or subtract one (i.e. "Schade" feedback...).
- Sometimes I'm a little slow to catch on. Thanks Paul. - Tre' 10:25:16 06/22/24 (0)
  I'm clearly stuck in a single ended rut. :-)
  
  Tre'
  Have Fun and Enjoy the Music
  "Still Working the Problem"

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