@btb
3 boards publicly available on BoardRepo.
Public boards
80columncard
An Apple II 80-Column Card. Based on the Videx Videoterm
schematicpcbbomcrystalpotentiometerresistorcapacitor
diskii
An Apple Disk II controller clone using standard EPROMs
schematicpcbbomswitchresistorcapacitorconnector
languagecard
An Apple II Language Card. Based on a design by iz8dwf
schematicpcbbomswitchresistorcapacitordiode