Looking for a Depraz mouse.

Tony Duell wrote: Mine are both that type (quadrature), but with the same connectors as found on the BBC micro's User port. However, whilst they appeared originally to be wired to conform to that port's pinouts (i.e. no TTL outputs shorted to ground etc.) they weren't wired in any of the common ways of wiring mice for BBC machines. I've got no idea what software they were intended to work with - or even if they were supposed to connect to Acorn machines at all (although I can't think of another contemporary system which used the same type of data input connector). I ended up making a note of the original pinouts and swapping the pins round at the connector end so that they'd work with my Master 512 machines... They're not particularly nice mice to use IMHO - but they are rather cool compared to the boxy alternatives around that time (although I suppose my Penny & Giles mouse dates from about the same time, and that one's far nicer than anything I've used on modern systems!) cheers Jules