Stuff what I did
A mystery circuit board that turned out to be a floppy disk interface for the Acorn Electron (affectionately known as the Elk). I bought this card for £2 at a radio Hamfest not knowing what it was. It had a “Cumana – The best name in memory” sticker on it and that was enough to […]
Giving an old notebook a new lease of life. Released in 2002 a Compaq Evo N410c notebook, plus Mobile Expansion Unit (with DVD and floppy disk drives) and a rear battery add-on would have cost around $2,400 (and probably the same amount in pounds sterling, because trans-Atlantic exchange rates never seem to apply to technology?). […]
Published in the September 1983 edition of “Electronics, The Maplin Magazine” the Minilab didn’t even get a mention on the front cover but this DIY power supply with extras for the electronics experimenter was just what the teenage me had been looking for. This Minilab has already made an appearance on this website. Here it […]
Following on from the Combinational Logic Tutor this next item is on the next rung up the computing evolutionary ladder. To explain I’d better start with combinational vs sequential logic theory. Combinational and Sequential Logic As seen in my previous post, connect the different logic gates and the Combinational Logic Tutor’s output is generally* a […]
A COMPUKIT Combinational Logic Tutor ascends to Silicon Heaven. My Own Silicon Heaven For some variety and whilst I’m stuck at home under corona virus lock-down I thought I’d start to catalogue my old computer and test equipment collection. I’ll tag these as ‘Silicon Heaven’ because, according to Red Dwarf, that’s where electronic equipment goes […]