Pre-retirement I used to use CAD at work. I’ve now used my experience to redraw (and in some cases modernise) the original Nascom 2 drawings. Here are all five schematics, the PCB components layout and the keyboard schematic. They are in PDF format and scaled to A4. Currently I am not offering other sizes, although I may do in the future.
Nascom Pages
- Latest Info
- About
- Downloads
- Copyright Issues
- History of Nascom & Gemini
- The User Groups
- The Magazines
- Nascom
- Publicity
- Gemini
- Ready Assembled Systems
- The Definitive Gemini Numbers List
- Library
- Gemini Disk Systems
- Gemini Hardware
- GM801 – The Mimi computer
- G802 64k page-mode DRAM
- G803 EPROM / ROM Card
- Henelec/G805 Floppy Disk System
- G806 Supermum combination motherboard
- G808 EPROM Programmer
- G809 FDC
- G810 “Hypermum” motherboard
- G811 Z80 CPU and “Bytewide” sockets
- G812 IVC
- GM813 Z80 CPU and 64k RAM
- IEEE 488 interface board
- GM815 Floppy Disk System
- GM821 59-key Parallel Keyboard
- GM824 A-D
- GM827 87-key Parallel Keyboard
- GM832 SVC
- G833 RAM Disk
- GM836 “Multinet” Network card
- G848 Serial Card
- GM849 Disk Controller
- GM852 Keyboard
- GM853 “Bytewide” EPROM
- GM860 EPROM Programmer
- GM862 256k RAM
- GM863 Battery-backed static RAM
- GM880 Z180 board
- GM886 – High Performance CPU
- G682 Bus system
- Gemini Firmware
- Other Stuff
- Credits
nascom.info 