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Chris Jones Profile picture
Chris Jones
@mjtech01
Martin-Jones Technology Ltd, technical problem-solver, electronics, software, hacking, making it work, from gigabit serial to EV charging.
Feb 27 • 11 tweets • 4 min read
We have a little family project going at the moment to make a radio controlled vehicle out of scrap bits and bobs. We found this receiver board in a broken toy but we have no handset for it. Can we make it work? 🧵/1 Image The chip on it is an 8A978 for which data is, amazingly, available. /2 Image
Oct 31, 2023 • 12 tweets • 5 min read
This is our venerable Canon PW-1080A dot matrix printer. Bought for use with our BBC Micro in about 1985, it still works perfectly. But bringing it back in to use recently revealed a problem 🧵/1 Image It hasn't had a new ribbon since about 1990, and the one that's in there had been re-inked several times before that. Finally the hammering of the print head wore the ribbon to the point that it shredded and broke. Oh no! /2 Image