John Larkin wrote:

"Michael A. Terrell" wrote:
Eeyore wrote:

TR for TRansistor. He's the famous Quad 405 amplifier. The 'current dumper'.
http://www.geocities.com/ResearchTri...ad405cirb.html

What a hideous hack!

A very FAMOUS hack that produced the first truly new audio power amplifier concept
in decades.

http://www.google.com/search?&rls=en...ping+amplifier

Graham