User:TerrapinDundee

TerrapinDundee, aka Mike Hatch.

I got the nickname after catching 9 of the little blighters (Red Eared Terrapins & Red Bellied Sliders) from a pond in a local park that I help to run with a group of volunteers. I also got quite a bit of leg pulling about "rubber gear", having donned waders and boots so many times in the efforts to catch them.

The group is The Friends of Brickfields Country Park, The Park - Brickfields Country Park - possibly the smallest Country Park in the U.K. at 7.5 acres. Website for the park is - www.brickfieldspark.org - have a look, and enjoy what is possibly the smallest country park in the UK.

I have recently started another |website for a very old electronic desktop calculator, the Soemtron 220, one of the first electronic calculators, which will gradually be expanded into a full engineering breakdown of this interesting piece of 1960's early electronic calculator history.

This site now has a section for what was for me my first introduction into computing, the Digital Equipment Corporation PDP-7, the machine that UNIX was designed on. The DEC PDP-7 and 7A 18bit computers page is here and contains a list of the known 99 customers of the 120 systems ever built, detail of the four known PDP-7's in existence, links to other PDP-7 websites and manuals for the machine.

Data I have placed with Wikipedia from either websites are with my permission, and The Friends of Brickfields Country Park, for use under the GNU Free Documentation License.

Personal, if you’re interested (probably not). 62, Design draughtsman in the motion control industry. Spent some years in jet engine research on electronic systems and engines for Concorde (Olympus 593), Harrier (Pegasus), SeaKing and others. I have used, repaired and maintained these now vintage computer systems - DEC PDP-7, DEC PDP-11, SDS9300, Elliot 803B and LEO III S#26. Have also designd electronic photographic systems and booths for passport photography, anti vandal coin mechanisms, many many pcb's, a few microprocessor systems and been involved in programming.

Married to Laura, an Italian, where we hope to be able to move to in the next few years when the young'uns have flown. (Maybe they will get pushed).

Mike Hatch mike@brickfieldspark.org or mike@soemtron.org