With a bit of spare time on my hands, I have started to clear out my shed and tidy up the garden.
This afternoon, hidden in a dilapidated cardboard box, in the passageway behind the shed, underneath a load of brambles and rotten leaves, I found my trusty MPF-1 - something that I thought had gotten tossed more than 10 years ago, along with my Jupiter Ace.
I bought the MPF-1 in the Autumn term of my second year at college in 1984, on a weekend trip to Edinburgh. It was the extended version with an extra Z80 PIO, CTC and Tiny BASIC ROM. It was in an end of line sale at an electronics shop that I had attended as a kid in the mid-1970s when I was at primary school in Edinburgh. I think I paid about £75 for it - which was more than 10 day’s of student grant.
Here’s the Wikipedia entry which describes the MPF-1 and its variants somewhat better than I can
The following photos are exactly as I unearthed it - I now have a restoration project on my hands.
I will leave it overnight to allow the spiders and slug to vacate the premises and then give it a good wash in fresh water.
In the breadboard area I have vero-wired an extra HM62256 32K RAM and what appears to be a socket for another 8255.
The MPF-1 manuals are available on line http://electrickery.xs4all.nl/comp/mpf1/doc/index.html