Browsing my box of diodes to find a replacement for the 5408 that died, I found this relic. Is that a diode made… by the BBC?!
https://furry.engineer/system/media_attachments/files/116/823/389/889/...
@nprofile1q... that's Brown, Boveri & Cie (merged with ASEA in 1996 into the ABB electronics corp we know nowadays).