Search found 689 matches

by Martin A
05 Apr 2023 21:12
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9431

Re: Help! (MTX512 Problem)

Checking Andy's site 2_32 was for a 2 rom MTX500, so 2_00 is likely for a 2 rom MTX with busted ram. The A rom only on the 2 Rom board needed removing Both jumpers "high" would be the correct setting for replacing the roms and ram. The MTX memory test is pretty much the only thing thats do...
by Martin A
02 Apr 2023 20:01
Forum: HARDWARE
Topic: GOTEK
Replies: 13
Views: 22806

Re: GOTEK

Were the original 74LS logic chips duff in some way? They were. The MTX couldn't even boot with the FDC board plugged in until the LS244s were replaced. They're the chips at A1 and B1 on the board, the schematic shows that they buffer and isolate the 4 LS191 counters that store the floppy drive DMA...
by Martin A
02 Apr 2023 11:52
Forum: HARDWARE
Topic: GOTEK
Replies: 13
Views: 22806

Re: GOTEK

SO, the process here turned out to be: Program the Gotek to the latest FlashFloppy 3.39. Set the Gotek to Drive zero, no other jumpers set. Unzip and copy the CF.CFG file below to the root of the USB stick Copy any suatable sized 59k CPM bootable disc image to the USB stick, 320K in my case, file ex...
by Martin A
20 Mar 2023 21:22
Forum: GENERAL DISCUSSIONS
Topic: The MTX on Youtube
Replies: 2
Views: 6407

The MTX on Youtube

This UK Computer museum/retro youtube channel "The Cave" has released a new video that includes a quick test of a couple of donated MTXs https://www.youtube.com/watch?v=vw8z5Hz9-iw The 500 worked, the 512 back screened. What's interesting is there's a quick view of a computer listing cave ...
by Martin A
12 Mar 2023 11:34
Forum: MFX
Topic: MFX mass-storage add-on - Storage Enhancement Request
Replies: 13
Views: 46715

Re: MFX mass-storage add-on - Storage Enhancement Request

There was a typo issue** with mapping the 512k ram in the first draft of the memory decode GAL. That was cured before the MFX went to "manufacturing". The issue resulted in duplication or some of the paged memory and would be apparent as corruption in a ram disc with more than 128k or so o...
by Martin A
02 Mar 2023 01:09
Forum: GENERAL DISCUSSIONS
Topic: Top 5 MTX games
Replies: 3
Views: 6274

Top 5 MTX games

I've been having a chat with Dave about the best things about the MTX. The game selection probably isn't the prime reason for picking up an MTX these days, that would be the hardware, but what would the top 5 games (or top 10 maybe) games be. I had a think of the games I played a lot and made the mo...
by Martin A
13 Feb 2023 20:29
Forum: GENERAL DISCUSSIONS
Topic: Release date of the Memotech MTX ?
Replies: 13
Views: 28548

Re: Release date of the Memotech MTX ?

The advantage of buying later, your's probably didn't break within a few months and end up going off to Memotech (and probably Jim) to repair!
by Martin A
10 Feb 2023 22:26
Forum: GENERAL DISCUSSIONS
Topic: Release date of the Memotech MTX ?
Replies: 13
Views: 28548

Re: Release date of the Memotech MTX ?

I got my original 512 in December '83.

The old bank statement I found shows the cheque cleared on 20/12/83!
by Martin A
08 Nov 2022 20:33
Forum: HARDWARE
Topic: My second MTX
Replies: 17
Views: 13962

Re: My second MTX

Plug in a TV, a composite monitor and VGA and you'll have THREE screens.