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-   -   HELP! Looking for 807 PP OTL circuit for electrostatics (https://www.diyaudio.com/forums/tubes-valves/354930-help-looking-807-pp-otl-circuit-electrostatics.html)

RE 604 24th May 2020 04:30 AM

My circuit is from this article in german language from the german magazine "Funkschau" 1962 .
Kind regards , Alexander .

kazap 24th May 2020 07:35 AM

2 Attachment(s)
Quote:

Originally Posted by haiqu (https://www.diyaudio.com/forums/tubes-valves/354930-help-looking-807-pp-otl-circuit-electrostatics-post6216604.html#post6216604)
.... AUDIO June 1963....


Thanks for this. Direct driving ESL's with tubes is so elegant. So Ive attached the two other pages of this article addressing the theory and build of the DD-amp in case anyone is inspired to have a go.

RE 604 24th May 2020 08:46 AM

Two pictures from Hi Fi Archiv :

http://www.hifi-archiv.info/Jahrbuch...HiFI-Stat2.jpg

http://www.hifi-archiv.info/Jahrbuch.../Hifi-Stat.jpg

Kind regards , Alexander .

Kay Pirinha 26th May 2020 12:47 PM

The 2nd schematics is missing a dot/ground connection. Besides that it is identical indeed, even with the same tubes, as QE06/50 is the Philips 807 equivalent!
Best regards!


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