QLEA ROM Switcher

This board, designed by members of the East Anglia Quanta subgroup, was a small board which fitted on the QL PCB and let a Sinclair ROM and a Minerva ROM be installed in the same QL, so that you could choose which of the two to use.

A small switch fitted to the back of the QL let you switch between the two ROMs, so that you could normally use the enhanced Minerva features, but switch back to a QL ROM when you wanted to use or test a program which may not work on Minerva.