Yet another BBC Micro: retro restoration

LinuxJedi put in an absentee bid in a local auction and won.

A BBC B that looks like it is in good condition, the “ashtray” hasn’t been pushed in either. It has twin Cumana disk drives, a little bit of software and a dust cover. Given that it has a dust cover, I figured it was going to be well looked after.

We have a standard issue 4 motherboard, with a DFS upgrade I’ve not seen before. It is an Opus D/Doss A1 based on the WD2791 disk controller. BBC Micros typically use the Intel 8271 or the WD1770. From what I can tell from searches, this is compatible with regular DFS, but adds support for an MFM based disk format that is similar to PCs as well.

LinuxJedi replaced the problematic Rifa capacitors in the power supply and general cleaning.

See the details in the post here.


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