Search found 93 matches
- Sat Jun 24, 2023 8:29 pm
- Forum: Hardware
- Topic: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
- Replies: 24
- Views: 8836
Re: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
I love Lardo’s idea. Me too. That's exactly what I'd do if I had room for one. It looks like I'll just have to settle for composite to HDMI. That's not necessarily terrible though. I was watching this video last night to see just how good it's possible to get the composite video looking if you're h...
- Sat Jun 24, 2023 3:30 am
- Forum: Hardware
- Topic: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
- Replies: 24
- Views: 8836
Re: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
...and costs twice as much ready built as I paid for the +2.
- Sat Jun 24, 2023 12:25 am
- Forum: Hardware
- Topic: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
- Replies: 24
- Views: 8836
Re: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
And that's the crux of the problem. I'd love to use RGB, but I'm in the same boat as millions of others with no choice but to use either a UHF TV signal, DVI or HDMI as none of my displays support anything else. I've looked at several converters on eBay and Amazon for around £30 that clearly state "...
- Fri Jun 23, 2023 5:10 pm
- Forum: Hardware
- Topic: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
- Replies: 24
- Views: 8836
Re: Zx Spectrum 128k +2 (SCART to VGA or HDMi)
Using the digital display data, they can then process it however they like and hence can output new sharp video streams. This is a much better method than sampling the original output from the ULA, or worse, the composite video signal. From a purely technical perspective, this is clearly the best w...
- Wed Jun 21, 2023 12:53 pm
- Forum: Hardware
- Topic: Replacement Spectrum+ case
- Replies: 2
- Views: 1721
Re: Replacement Spectrum+ case
This one? I guess probably not as you're asking about a case rather than an entire Speccy clone.
I think this looks great, but £300 for the base model?
https://www.kickstarter.com/projects/sp ... xt-issue-2
I think this looks great, but £300 for the base model?
https://www.kickstarter.com/projects/sp ... xt-issue-2
- Wed Jun 21, 2023 12:41 pm
- Forum: Hardware
- Topic: 48K issue 4B upper memory issue
- Replies: 10
- Views: 8813
Re: 48K issue 4B upper memory issue
Have you cleaned the edge connector on the ZX Spectrum?
If you don't have a fibre-bristle pen, an ink eraser works fine as long as the abrasive in it isn't too coarse. The blue end of a Faber-Castell eraser works fairly well if you're gentle with it.
If you don't have a fibre-bristle pen, an ink eraser works fine as long as the abrasive in it isn't too coarse. The blue end of a Faber-Castell eraser works fairly well if you're gentle with it.
- Mon Jun 19, 2023 2:52 am
- Forum: Lambda 8300/ Power 3000 Lounge
- Topic: Lambda 8300 - screen goes black after a while
- Replies: 17
- Views: 12788
Re: Lambda 8300 - screen goes black after a while
A long shot I know... If you used the modulator can as the ground connection for the composite video mod, try giving the can a wiggle. I only mention this as 2 of the 3 ZX81s I've played with had dry joints on both of the modulator can legs that solder through the PCB. This could lead to an intermit...
- Sat Jun 17, 2023 10:22 pm
- Forum: Sinclair Misc
- Topic: Meet Flatulentia's American Friend
- Replies: 3
- Views: 6270
Re: Meet Flatulentia's American Friend
I finally got around to having a proper look at this one. It was just the dodgy 7805 regulator that needed replacing, so it now has a switch-mode jobby. I've already slapped a big heatsink on the ULA and given it a Zigg's composite video mod inside the gutted UM1082 modulator can. Next up will be a ...
- Sat Jun 17, 2023 1:53 pm
- Forum: Hardware
- Topic: Internal 16K RAM mod doesn’t quite work with Dr Beep hires games
- Replies: 56
- Views: 6341
Re: Internal 16K RAM mod doesn’t quite work with Dr Beep hires games
Yes. 100nF is far too high. As Mark said, what you're trying to do is shift the RAM timing to within a window where it behaves as expected by the rest of the hardware. If no value between, say, 33pF and 470pF fixes the problem then going higher will likely achieve nothing except placing unnecessary ...
- Sat Jun 17, 2023 12:17 pm
- Forum: Hardware
- Topic: Internal 16K RAM mod doesn’t quite work with Dr Beep hires games
- Replies: 56
- Views: 6341
Re: Internal 16K RAM mod doesn’t quite work with Dr Beep hires games
That's way too high. Please be careful as there's only a 680R resistor between your capacitor to ground and the /RAMCS pin on the ULA.