Not exactly ZX related, but related :)
Not exactly ZX related, but related :)
I picked up one of these this week -
Alas there'd no PSU and from the cursory brouse around the internet it appears they need something a little different... I don't support anyone knows of the pinout for the power supply?
M
Alas there'd no PSU and from the cursory brouse around the internet it appears they need something a little different... I don't support anyone knows of the pinout for the power supply?
M
REX LIES IN WAIT
Re: Not exactly ZX related, but related :)
I assume you've seen the page on wikipedia that says it's 22.5v ac 1amp tapped at 18v and 9v ..strange!!! Haven't been able to search much more as my internet connection is playing up at the moment! As for pinouts....nope! You may have to open it up and trace out the power lines.. it most likely uses a 5v and 12v line internally, so I would assume the 9v feeds a 5v regulator and the 18v , a 12v regulator .. as for 22.5v ... ? ? ? I would like one of these computers myself but they always seem to go for prices higher than I can afford!
Re: Not exactly ZX related, but related :)
I think you're probably right. Well that's my job for the weekend, stripping down an MTX...
REX LIES IN WAIT
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Re: Not exactly ZX related, but related :)
I can help you with this
I also have a Memotech MTX complete with PSU. I have even drawn out the power supply details including a pin-out.
However, all the info is stored as hard storage in a file (on paper!) and I am working late shifts this week. If you can stand the wait while I try to access my memory, I will try and dig it out at the weekend
Meanwhile here's a picture of the transformer to keep your interest alive Mark
I also have a Memotech MTX complete with PSU. I have even drawn out the power supply details including a pin-out.
However, all the info is stored as hard storage in a file (on paper!) and I am working late shifts this week. If you can stand the wait while I try to access my memory, I will try and dig it out at the weekend
Meanwhile here's a picture of the transformer to keep your interest alive Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
Re: Not exactly ZX related, but related :)
Thanks for that picture. It looks like the PSU is just a transformer - The docs must be right and the MTX takes 22, 18 & 9V AC.
Mike
Mike
REX LIES IN WAIT
Re: Not exactly ZX related, but related :)
Wow! I didn't know that Memotech was making also its own computers.
Interesting.
Interesting.
IN NIHILUM REVERTERIS - a big text-adventure game for ZX81: http://tiny.pl/g2m6m
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81: http://tiny.pl/q2m44
ZX81 COMPETITIONS 2007/2009: http://zx81.republika.pl/
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81: http://tiny.pl/q2m44
ZX81 COMPETITIONS 2007/2009: http://zx81.republika.pl/
Re: Not exactly ZX related, but related :)
Then you should watch the film "L.I.S.A. der helle Wahnsinn" (original title "Weird Science"http://en.wikipedia.org/wiki/Weird_Science_%28film%29)yerzmyey wrote:Wow! I didn't know that Memotech was making also its own computers.
Interesting.
where two youngsters create a sexy girl with the help of a mtx512.
This is the main reason why men buy this computer!
Last edited by Paul on Thu May 31, 2012 11:55 am, edited 1 time in total.
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: Not exactly ZX related, but related :)
MikeW wrote:Thanks for that picture. It looks like the PSU is just a transformer - The docs must be right and the MTX takes 22, 18 & 9V AC.
Mike
Did you see these sites:
http://www.mtxinfo.de/
http://www.mtxworld.dk/main.php
Re: Not exactly ZX related, but related :)
Picture say more than words.Paul wrote: Then you should watch the film "L.I.S.A. der helle Wahnsinn"
Re: Not exactly ZX related, but related :)
Loved that movie - wanna make one of those with my TS1500PokeMon wrote:Picture say more than words.Paul wrote: Then you should watch the film "L.I.S.A. der helle Wahnsinn"