C64 Kernal Adapter - Long Board
The Kernal Adapter for the long board (all ASSY numbers except 250469) can hold up to 8 kernal ROMs. They can be selected via the jumpers or the kernal switcher.
The adapter also works for
● The BASIC ROM in all C64 version
● The BASIC ROM in the VIC-20
● The Kernal ROM in the VIC-20
● The Kernal ROM in the 1541 floppy disk drive (not the -II version)
● Kernal ROM in the SX-64 (leaving pin 1, 2 and 27, 28 free)
The Kernal adapter is providing 5V on one pin of the jumper. The purpose of this is powering a controller (like an Arduino) , that selects the kernals.
Schematics
Rev. 2 provides an optional pin header (J1) with A5 and A8 for stereo SIDF applications.
Dimensions
Please find the project documentation and rescources on github: https://github.com/svenpetersen1965/C64-Kernal-Adapter-Switch-Long-Board