Adapters for switching different Kernals, various projects combined.
 
This is a simple adapter to convert from a 28pin EPROM to a 24pin 2564 PROM. Depending on the EPROM size, the different Kernal can be switched.
The following sizes can be used as EPROM:
2764 = 1x 8k Image/Kernal
27128 = 2x 8k Image/Kernal
27256 = 4x 8k Image/Kernal
27512 = 8x 8k Image/Kernal