Replica MK14

My replica MK14 front viewMy replica MK14 top view

My replica MK14 is based on the version 5 original, this version incorporates the revised address decoding so that the PROM only appears once in the memory map leaving space for e.g. the VDU board.

In addition I have added a link and pull-up resistor (R16) to NENIN for use with the VDU board (cut the link and fit the resistor) and a pull-down (R17) on SENSE-A which enables the use of the later version SCIOS (either fit the resistor or a wire link).

I have included three footprint options for the keypad switches:

(replace xx in switch part numbers with your colour option)



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