811A

[tubetek]

I am looking for a schematic for a push-pull 811a amplifier. I have several of these tubes and would like to build something a little different. This is not going to be an audiophile grade amp, just a guitar amp. Any help would be appreciated. Single ended designs would be OK too. (I already have Bob Danielak's schem.)

Thanks, Steve

[Le Basseur]

SE

Hi Steve,
Here you have two SE schematics (AFAIK,I also have a hardcopy of an old RCA PP 811A-based amp...please be patient,I'll scan it for you as soon as I'll find it).
You'd might try finding schematics for a tube called OT100 (this one is a German Tungsram equivalent for the US-designation 811A).Both tubes share the same electric characteristics,the most problematic one being the A2 or AB2-class,hence an appropriate driver.
Regards,

[Le Basseur]

Just remembered where I saw the RCA schemo:
http://www.triodeel.com/mi12246.gif
The Gotham amp:
http://www.triodeel.com/gothamp.gif
Also,alot of 811A-related infos here:
http://www.diyaudio.com/forums/searc...der=descending
Regards,