Search found 758 matches

by 1024MAK
26 May 2015 16:21
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

Inside #08.jpg
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A parts list and schematic will follow (hopefully) later in the week.

Mark
by 1024MAK
26 May 2015 16:18
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

Inside continued:
Inside #05.jpg
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Inside #06.jpg
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Inside #07.jpg
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by 1024MAK
26 May 2015 15:53
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

Looking good Mark! Will you be posting circuit diagrams and a parts list as I'd like to make a 110v version? Of course ;-) The only differences between a 230V (220V to 240V) and a 110V to 120V version are the mains transformer, the mains on/off switch (which has a neon in it) and the current rating...
by 1024MAK
26 May 2015 15:43
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

Inside #02.jpg
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Inside #03.jpg
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Inside #04.jpg
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by 1024MAK
26 May 2015 15:40
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

DC board 3.jpg
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Step up DC to DC converter:
Step up DC to DC converter.jpg
Step up DC to DC converter.jpg (237.97 KiB) Viewed 10181 times
Inside:
Inside #01.jpg
Inside #01.jpg (227.42 KiB) Viewed 10181 times
by 1024MAK
25 May 2015 21:16
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 194777

Re: Building a replacement MTX PSU

Construction Details First, the DC board: DC board 1.jpg DC board 2.jpg DC board underside.jpg Diodes: Two 1N4001 or 1N4002 or a higher voltage rating. Capacitors: The small blue capacitor is a 100nF ceramic multilayer type, 5mm spacing. The large capacitor is a 2200uF 16V electrolytic. Fuse: PCB f...
by 1024MAK
25 May 2015 20:54
Forum: OFF TOPIC
Topic: World of Spectrum off-line
Replies: 4
Views: 5046

Re: World of Spectrum off-line

Well, the WoS forums are back 8-) . Not bug free, but useable (just make sure your hands can't reach your hair if trying to post using a mobile...).

Mark
by 1024MAK
17 May 2015 21:53
Forum: NEW HARDWARE
Topic: MTXplus+ Running CP/M
Replies: 2
Views: 6015

Re: MTXplus+ Running CP/M

Nice :D Image

Like 8-)

Keep going. I need a new Z80 super computer for my missile control system :lol:

Mark
by 1024MAK
03 May 2015 21:07
Forum: OFF TOPIC
Topic: Amazing homebrew ZX Spectrum & Amstrad CPC
Replies: 7
Views: 7604

Re: Amazing homebrew ZX Spectrum & Amstrad CPC

Same guy, but he has got a lot better at sorting out orders.
In the past, demand exceeded his ability to supply...

Myself, the various items I have bought from him have all arrived within a reasonable time (this includes pre-order items).

Mark
by 1024MAK
26 Apr 2015 15:09
Forum: OFF TOPIC
Topic: Amazing homebrew ZX Spectrum & Amstrad CPC
Replies: 7
Views: 7604

Re: Amazing homebrew ZX Spectrum & Amstrad CPC

Cross link to the temporary world of spectrum forum where there are some more details.

See also Zaxon's products on the Sell My Retro site

Mark