Schematics:

Here are the complete schematic diagrams of the A4 power amplifier, designed to be printed at 300dpi onto A4 paper in landscape mode - use a graphics package for this. Alternatively, download PDF versions which should be easier to print.

Main analogue schematic (96K) PDF version (63K)

Control and Power Supply (115K) PDF version (69K)

PDF printing problems? If you get missing or distorted lines when printing the PDF's, try setting the "page scaling" option to "none".