IFEL ROM/RAM Cartridge for Acorn BBC Master

The IFEL ROM/RAM Cartridge for Acorn BBC Master is a cartridge that fits into an available cartridge slot on the Acorn BBC Master and provides 8 selectable ROM images making them available to the computer in banks of 2.

The IFEL ROM/RAM board for the Acorn BBC Master series

The two switches on the far left of the board are used to select the different ROM/RAM banks available having four possible combinations.

The third switch from the left marked as TWP provides a TOTAL WRITE PROTECT feature protecting any Sidew