Frank Ridderbusch


About things, that are of interest to me (in English and in German).


Nascom Circuit Diagrams

Continuing the process of cleaning up the basement I found the original Nascom circuit diagrams. These diagrams originate from 1978 and I got the actual Nascom hardware beginning of 1981 second hand.

CPU/RAM/EPROM/PIO Circuitry, Audio Cassette
    Interface

CPU/RAM/EPROM/PIO Circuitry, Audio Cassette Interface

Video Circuitry, Character Generator ROM

Video Circuitry, Character Generator ROM

Keyboard Circuitry

Keyboard Circuitry