Acorn Electron Plus 1 upgrade ALA-11 expansion cartridge slots Printer Analogue
The Plus 1 was the most important upgrade for the Electron.
The
Plus 1 provides 2 cartridge slots, a parallel print port and an
analogue in socket with 4 x 8bit analogue to digital input channels for
joysticks, games paddles or analogue measurement. It also provides the
base for many further expansions such as disk drives, sideways ROMs and
other upgrades using the cartridge slots.
Made by Acorn
In lovely sound used condition fully working
Please do check out the pictures as these form a major part of the description.
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