Yes, Thiago, have a good look at the Baby Huey amp in the tube forum.
EL84 Amp - Baby Huey
It has Schade feedback with PP, requiring two separate feedback networks but dimensioned identically.
It's an extremely good circuit, developed by Yves from Alsace and Ian from South Australia, a friend of mine. This can relatively be adapted to bipolars too.
Ciao,
HD
EL84 Amp - Baby Huey
It has Schade feedback with PP, requiring two separate feedback networks but dimensioned identically.
It's an extremely good circuit, developed by Yves from Alsace and Ian from South Australia, a friend of mine. This can relatively be adapted to bipolars too.
Ciao,
HD
Last edited:
well known on forum ,even if silly me can't remember whom to credit for
Nice curvature, perhaps my mind is still influencing by the Red Sparrow.
Zeus Positive Feedback
My attempt for a positive feedback amp, can switch in and out by disconnecting the loop, it gives a nice effect like a “presence” plus “ loudness” switches.
My attempt for a positive feedback amp, can switch in and out by disconnecting the loop, it gives a nice effect like a “presence” plus “ loudness” switches.
Attachments
I had occasion to play with Mosfet push-pull Schades. The basic topology
looked like this:
Is that basically Zen version 5? (Or am I remembering wrong?)
Hey Zen Mod, thanks for the comment.
It was another initial test and I was looking at the gain, but now using 10k and 1k with 15v + 15v and additional stage of gain, I got good THD results.
Output Current 1.7A
7.1 volts AC output at 0.13% at 8 ohms.
What do you think?
thank you
It was another initial test and I was looking at the gain, but now using 10k and 1k with 15v + 15v and additional stage of gain, I got good THD results.
Output Current 1.7A
7.1 volts AC output at 0.13% at 8 ohms.
What do you think?
thank you
Attachments
Am I forgetting something?
Zen v.5 sch. - R2 is the feedback element and you don't have it...
Schade is (a form of) fedback.Hey Juma, I thought to Schade that we do not need any more Feedback
Is that basically Zen version 5? (Or am I remembering wrong?)
Oh yeah, now I remember it...
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Pass Labs
- schade feedback in push pull