Doors closed by COVID-19, Brit retro tech museums need your help

This hack owes it all to a dalliance with a TMS9900 40 years ago. How about you?

Times are tough for the custodians of Blighty's computing history as both the National Museum of Computing at Bletchley Park and Cambridge's Centre for Computing History have found themselves bereft of visitors, events and income, thanks to the COVID-19 lockdown. Can you help?...