Laser 128 expansion box schematic: laser128-expansionbox.png

Choplifter, patched to run on the IIc Plus: choplifter-prodos-iicplus.dsk.gz

Apple IIgs ROM verifier (for ROM 3): romchecker.dsk.gz

Apple IIc serial port timinig fix:
Unmodified board: iicserial-orig.jpg
Fixed board: iicserial-fixed.jpg
Front-side modifications: iicserialfix-front.jpg
Back-side modifications: iicserialfix-back.jpg