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Commodore PET
Sinclair ZX80
Sinclair ZX81
BBC Micro
Commodore 64
Sinclair ZXSpectrum
Memotech MTX
Memotech CP/M
Atari ST
Commodore Amiga
DEC 3000 AXP
Raspberry Pi



Site Computer News

2015  <<    2016    >>  2017


December 2016

  • MTXPlus+ development continues :-
    • I am currently working on resolving a CPU CPLD timing problem
    • Tony is working on modifying the video board firmware to handle Andy's HEX-TRAIN
    • The Eurocard prototype boards that I used are hard to find - so I have designed a replacement
  • Used some of the time over the holidays to fix the "colour" problem on one of my FDX 80 Column boards
  • Martin has released a small firmware upgrade for CFX, incorporating additional commands from MTXPlus+


November 2016

  • Memofest 2016 was held at my place on 29/30th October
    • Notable highlights included :-
    • Phew! - now that is over, I can get on with MTXPlus+ etc. (I hope!)
    • The MTXPlus+ CPU PCB is back from manufacture, with just one minor error this time!
      • Testing was a nightmare, the board appeared to be u/s but it was actually a PLCC socket fault
      • (Martin was able to test the board and firmware on his system to confirm that it was not faulty)
      • Next up - the I/O board . . . . . . . .


October 2016

  • I am just back from holiday - but things are coming along nicely for Memofest 2016


September 2016

  • Gilles Bronchain has kindly sent me some photos of a pair of MTX512s with consecutive serial numbers that he obtained from Memotech's French distributor. The machines have what appears to be a locally developed video convertor to generate a SCART output from the MTX Video board.


August 2016

  • The next MTXPlus+ PCB (the video board) is ready for manufacturing
  • The firmware in MTXPlus+ that allows the system to run at a range of clock frequencies between 4 and 16Mhz, and the technique for switching between them, has been significantly enhanced (thanks to Tony Brewer).
  • Arrangements for Memofest 2016 are being finalised : confirmed as 29th/30th October in Aberdeen
    • Drop me a line if you plan on attending
  • The first MTXPlus+ PCB has been manufactured !


July 2016

I would really like to make the magazines from the MTX User's Club - Germany available on-line, although they are in German (obviously), I think that they contain a wealth of MTX related information that is at risk of being lost to the annals of time. Unfortunately, the magazine editor will not allow me to do this, see the details on my MTX User's Club - Germany page.
  • Posted Volume 5, Issues 3, 4 & 5 of the Memotech Owner's Club Magazine  (Courtesy of Matthew Clark)
    • Volume 1, Issues 1 to 3 are now the only ones missing from the set - can you help?
  • MTXPlus+ development continues, albeit, somewhat slowly !
    • An exciting new development will be announced soon!
    • I am also considering getting some PCBs made - let me know if you might be interested
  • Martin has assembled a single board version of MTXPlus+ on an ATX form factor prototype board
  • Adapted the DC only MTX512 that I got from Manfred to use a standard Cisco PSU for the MTX


June 2016


May 2016


April 2016


March 2016

  • Posted a copy of Intercept 7, a SyntaxSoft game with similar game play to 3D-Tachyon Fighter (Courtesy of Matthew Clark). The .mtx file was corrupted, but our resident game format expert has recovered it (thanks Paul!)
  • Posted a copy of Son of Qogo, this unbranded game looks like a development version of Qogo that eventually became Qogo 2 (Courtesy of Matthew Clark).
  • Posted a copy of Tape Reader and Merge Version 2.1, published by the Software Source (Courtesy of Matthew Clark)
  • Posted a .bas version of Flummox (Courtesy of Matthew Clark)
  • Matthew has also scanned and sent me a load of Memotech Owner's Club magazines that I will post as time allows. I have posted the first ones (Volume 3, Issues 2 & 3) on the MOC Magazine page.
  • Volume 3, Issues 4 & 5 are still missing, do you have a copy?
  • Posted Volume 3, Issues 6 & 7 of the Memotech Owner's Club Magazine  (Courtesy of Matthew Clark)


February 2016

  • Posted a copy of the "missing" MTX512 review from Personal Computing Today (Courtesy of Jim Wills)
  • Posted a copy of MTX Fontastic, an Epson Printer Utility, see MTX World Issue 2 (Courtesy of Matthew Clark)
  • Posted copies of some Memotech related documents (Courtesy of Jan Seyfarth, Germany)
    • Memotech Retail Price List - August 1984
    • Memotech Software Price List
    • Memotech computer - Guarantee Card
    • Memotech computer - Registration Card
    • Digital Research, CP/M 2.2 License Agreement
    • Digital Research, CP/M 2.2 Registration Card for Memotech computers
    • NewWord Registration Card for Memotech computers
    • SuperCalc Registration Card for Memotech computers
    • SuperCalc Answers Card
    • Memotech advert from Your Computer, March 1984, "The MTX series, straight from the author's mouth"
    • Manual for the Memotech DMX80 printer, a badged version of the Panasonic KX-P1090
  • Also posted a scan of the Your Computer advert downloaded from The Internet Archive


January 2016

  • New Year Bonus
  • I have posted a selection of various Z80 related books in the MTX Technical Library. These are already available in a number of places on the web (including but as I had already downloaded them, I thought that I might as well re-post them.
  • MTX-Pi (A raspberry Pi pretending to be a real MTX) construction is mechanically complete
  • Update : It lives ! - MTX-Pi running on a Rasperry Pi inside a real Memotech keyboard (Thanks Bill !)
  • Did you know? Memotech assembled MTX keyboards, rather than buying them in like, say, Acorn for the BBC
  • For a number of reasons, the "nameplate" speed of MTXPlus+ has now been finalised at 10MHz - see why here


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