EL84 Push-Pull Transconductance amp using SMPS

[PPrabi]

Hello and happy new year to everybody! I'm working and this Amp since a couple of months,the principle is based on Menno van der Veen's idea readable here: Menno van der Veen, audio electronic research & consultancy

The chalenge was to use SMPS either for the heating,H.V and ancillaries.

Schematics:
View attachment Transi-Rabi-Amp.pdf
View attachment Transi-Rabi-PS-V2.pdf

Much more détails and photos can be viewed on these 2 French sites:
ELEKTOR FORUMS • View topic - Ampli Transimpedance + alims a decoupage
6bm8-lab.fr • Afficher le sujet - Ampli Transimpedance + alims a decoupage

Despite to its small audio power , listening feeling is very very good!

Best Regards.
Eric.
eric.rabeuf@wanadoo.fr

 

[smoking-amp]

Looks like P-P shunt "Schade" local N Fdbk using Mosfet drivers.
Something I missed? Seems like old stuff. Menno wrote a book on it?

 

[JZatopa]

Great work, any chance you will be posting up some measurements?

 

[PPrabi]

Thanks,
well,there are plenty of on the 2 French sites above,I'll take some time to translate some of them.

Éric.

 

[6L6]

Please do not post copyrighted material.

 

[PPrabi]

Well, I think that there's a kind of mistake hère, I have no intention to do so.
Even Menno has published my first article on his Web site...
Nevertheless, if you think that there is any problème with m'y thread, just discard it.
Best Regards.
Éric.

 

[pieter t]

Éric, I think it is not a problem to provide links to Menno's website, but publishing the pdf's is beyond copyright.

 

[PPrabi]

Hello,
after emailing to Menno, he demands me to remove these files, you've done the job here.
I've done it on one French Website (no concern for the other one).
My apologizes , I've been victim of my enthusiasm for this project!
Eric.