The three photographs above show the G3NGD version
of the Sinclair ZX81 Microcomputer.
G3NGD built the main computer board from a kit
of parts supplied from Sinclair.
The Keyboard is constructed using a Maplin kit,
the Printer and RAM pack are mounted inside
the box. Sockets are fitted at the rear, so as
to facilitate Morse and RTTY operation.
The computer is still in full working order,
although it is well over twenty years old.
G3NGD wrote a substantial amount of software
for this computer, some of which was published
in Practical Wireless Magazine. The software
was later re-written, and made available for the
BBC Microcomputer and later Windows 98. A series
of Programs were published monthly in Short-Wave Magazine. The programs
were more complex because more memory was available. |
