Upgrading an Acorn BBC Model B

I recently won a charity auction for a BBC Model B bundle on eBay (see my original blog post here, and CRT restoration here). The Model B was a common sight in British schools during the 1980s thanks to the BBC’s Computer Literacy Project. It’s common for certain components in vintage electronics to deteriorate withContinue reading “Upgrading an Acorn BBC Model B”

Sinclair ZX Spectrum 128k+2A/+2B/+3 PSU Build

I like to keep an assortment of working power supplies for various vintage computers in an accessible manner, alongside all my test equipment, so I can easily power up pretty much any computer or board that I might need to. However, I’m often reluctant to use most original power supplies, as they are inefficient, unreliable,Continue reading “Sinclair ZX Spectrum 128k+2A/+2B/+3 PSU Build”

My *New* Acorn BBC Model B

I recently won an eBay charity auction for a BBC Model B “Micro”, which came bundled with a Microvitec CUB CRT monitor, an Opus 5802 5.25″ FDD, and some miscellaneous items like joysticks and boxed games. What’s especially interesting about this machine is that it has been signed by Stephen Furber, the principal hardware engineerContinue reading “My *New* Acorn BBC Model B”

My *New* Dragon 32

I recently bought a Dragon 32, yet another 1980s 8-bit computer to add to my collection. I’ve owned several in the past but none of these came with a working power supply, which are difficult to replicate, so I’ve been looking forward to putting this one through its paces. The computer was basically new inContinue reading “My *New* Dragon 32”