The files "730Preamp" and "732Power" show scans of the original hand-drawn circuit diagrams done when the 700 range was being developed. However the production boards for the 732 power amp used slightly different devices and these are shown in "A20cd" which is the production diagram for the A20 power amp board of the 732. See the "Documents/700/Devices" folder for info on the devices used. The ClipRinged diagram highlights the circuit used to detect clipping. JCGL August 2005