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Ian Jeffray's Projects

a3000_16mb icon a3000_16mb

16MB RAM for A3000. Doesn't use motherboard RAM. Glue logic pinched from A540.

a3000_8mb icon a3000_8mb

8MB RAM for A3000. Doesn't use motherboard RAM. Glue logic pinched from A540.

a3000_backplane icon a3000_backplane

A three-slot backplane for the Acorn A3000. Requires a two-wire mod to the A3000 motherboard.

a3k_simm icon a3k_simm

Acorn A3000 4MB RAM PCB, using a 72-pin SIMM

a5000_8mb icon a5000_8mb

8MB RAM upgrade for A5000 - fully replaces all motherboard RAM. Uses RAM connector, not ROMs.

a540r260_arm2 icon a540r260_arm2

An ARM2 CPU card for A540 and R260. Should suit ARM3 cards plugged in to it!

archimedes_arm3 icon archimedes_arm3

ARM3 board for fitting in ARM2 socket on Acorn Archimedes series machines

archimedes_arm3_fpa icon archimedes_arm3_fpa

ARM3 board with FPA support, for fitting in ARM2 socket on Acorn Archimedes series machines

atomwide_twinmemc icon atomwide_twinmemc

Re-creation including close to original layout of Atomwide Twin MEMC board for Acorn 32bit systems

hd1772 icon hd1772

16MHz WDC 1772 floppy controller / clock switcher for HD floppy support

ide_44m_to_40f icon ide_44m_to_40f

Simple adapter for a 44pin IDE device to a 40pin host. Layout suitable for a DOM on an Acorn A5000 or podule.

memc_ffc icon memc_ffc

An adapter for MEMC to FFC cable (without RAM control lines)

memc_plug_ffc icon memc_plug_ffc

An adapter for MEMC plug to FFC cable (without RAM control lines)

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