Replica 32K Dynamic RAM Board 

Replica 32K Dynamic RAM Board Photo

Based on the issue 5 schematic and the layout from my own issue 3 board.

Fit links at LKA to select required 4 x 8K address banks - is normally configured to provide continuous RAM from 2000 to 7FFF and C000 to DFFF.

Fit links LKB to suit CPU board and clock :

When used with the 6502 CPU Board the Local Oscillator may need to be adjusted by changing the value of R13, refer to the Technical Manual for details.

No other links need to be fitted or changed.


Bill Of Materials

Blank PCB

Replica 32K Dynamic RAM Board PCB


Back to Replica Boards

Acorn Home Page