Search found 914 matches

by mrtinb
Wed May 22, 2019 4:59 pm
Forum: Development
Topic: ZX Printer Belt
Replies: 130
Views: 21950

Re: ZX Printer Belt

Maybe you can buy a fax roll, and cut it for 10 cm, and use that, so there's paper between styli and printer roll.
by mrtinb
Sun May 12, 2019 8:41 pm
Forum: Hardware
Topic: White screen and no cursor at all
Replies: 17
Views: 462

Re: White screen and no cursor at all

Maybe it’s just a broken ULA like 99% of all the repairs in this forum. It seems to be the weak spot.
by mrtinb
Sun May 05, 2019 10:45 pm
Forum: Sinclair Misc
Topic: ZX80 & ZX81 Magazines and Newsletters
Replies: 11
Views: 325

Re: ZX80 & ZX81 Magazines and Newsletters

Here's a scanned version of ZinX issue 2 March 1982 from ZX-data's user group
by mrtinb
Sun May 05, 2019 10:38 am
Forum: Sinclair Misc
Topic: ZX80 & ZX81 Magazines and Newsletters
Replies: 11
Views: 325

Re: ZX80 & ZX81 Magazines and Newsletters

I see the Sinclair Freaker is mainly Spectrum with a little ZX81. A little ZX81 is better than nothing:)
by mrtinb
Sun May 05, 2019 10:36 am
Forum: Sinclair Misc
Topic: ZX80 & ZX81 Magazines and Newsletters
Replies: 11
Views: 325

Re: ZX80 & ZX81 Magazines and Newsletters

bodz wrote:
Sun May 05, 2019 9:24 am
I would love to have a PDf copy of the Danish newsletter you have mentioned.No translation needed though, thank you :)
Would you mind sharing your nationality?
by mrtinb
Sun May 05, 2019 8:58 am
Forum: Sinclair Misc
Topic: ZX80 & ZX81 Magazines and Newsletters
Replies: 11
Views: 325

Re: ZX80 & ZX81 Magazines and Newsletters

Hi :) I would be very glad if you would share a PDF of the Danish magazine which I’ve never heard of. I can add a PDF of a Danish newsletter to the list for you. I have a single issue of ZX-data’s user group newsletter: ZinX Edit: (I might throw in a translation of it as well,if you don’t read Danish)
by mrtinb
Wed May 01, 2019 7:28 pm
Forum: Hardware
Topic: White screen and no cursor at all
Replies: 17
Views: 462

Re: White screen and no cursor at all

A digital probe will help you find the problem if you don’t have an oscilloscope. Or even a voltmeter can help.

Andy from this forum has created a cheap ULA replacement.

https://www.sellmyretro.com/offer/details/32319

Hope he makes more soon.
by mrtinb
Fri Apr 26, 2019 12:39 pm
Forum: Development
Topic: Pixel Plotting in ZX80 Basic
Replies: 2
Views: 345

Re: Pixel Plotting in ZX80 Basic

Let me say it short: I'm impressed.
by mrtinb
Mon Apr 22, 2019 7:44 pm
Forum: Hardware
Topic: 5.5" B/W CRT TV - maybe composite mod?
Replies: 3
Views: 144

Re: 5.5" B/W CRT TV - maybe composite mod?

There’s YouTube videos with another version that has composite already. But otherwise they look very similar. https://youtu.be/BmllyvG5c2w

And a full disassembly here, but again the version with composite already. http://jestineyong.com/servicing-rising ... onochrome/
by mrtinb
Mon Apr 22, 2019 4:15 pm
Forum: Hardware
Topic: 5.5" B/W CRT TV - maybe composite mod?
Replies: 3
Views: 144

5.5" B/W CRT TV - maybe composite mod?

Hi :) I have a 5.5" B/W CRT TV that has VHF/UHF input. But there's no composite. I've opened it up today, and see there are "holes" in the back for more outputs. And I see on the board there are a lot of "missing" components. So this is probably a PCB made for different models of the TV, and some ex...