AF Power Amplifier and Preamplifier Schematics

Electronics Infoline Web

Stereo line driver

http://www.mitedu.freeserve.co.uk/Circuits/Audio/linedrv.htm

commercial tube amplifier.

http://www.tanker.se/lidstrom/quad22.jpg

http://www.rcrowley.com/Sanken/index.htm

http://www.bryston.ca/schemprod.html

http://www.geocities.com/TimesSquare/1965/se_sv811.html

National Semiconductor Application Notes.

http://www.national.com/an/AN/AN-69.pdf

http://www.uoguelph.ca/~antoon/circ/amp1.htm

of some of their amplifiers on-line

http://www.qscaudio.com/support/library/manuals/svcman.htm