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CSS has been Rogeredcomp.sys.sinclair has just been rogered. I make do with a summary when anything happens and activity shot up on Friday. Turns out to be the usual qu…
... as this almost has the dot crawl effect in the earlier email ... -
128 Heatsink Machine UpgradesThe title says it all - anything I can do to upgrade this machine? Thanks. I already have a PlusD and a DivIDE +..
... talk of. Do you mean dot crawl? (that's how I've ... -
Which Speccy game had best border effectsIn truth, I'm just trying to remember a game from my youth, and the amazing border effect during pause is the only thing I can clearly recall about i…
... has aided in eliminating artefacts / dot-crawl from the image -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... will be terrible amounts of dot crawl and colour banding. Stick with ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... composite video signals (i.e. dot crawl). The scanlines are barely visible ... clean picture, with nearly no dot crawl, or thick edges between each ... -
+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... have quite a lot of dot crawl since the colour subcarrier wouldn ... .54MHz CPU clock (7.09MHz dot clock) and the pixels and ... -
+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... have quite a lot of dot crawl since the colour subcarrier wouldn ... .54MHz CPU clock (7.09MHz dot clock) and the pixels and ... -
Composite mod - which one?On all my 16K/48K and Plus Spectrums I use to carry out the "Womble" Composite mod: [URL="http://womblesretrorepairshack.blogspot.de/2008/11/zx-spect…
... using composite video. It eliminates dot crawl and ensures the main display ... -
Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... using composite video. It eliminates dot crawl and ensures the main display ... -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... sharp, bright and free from dot-crawl, and equivalent in quality to ... -
Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... does not cure things like dot crawl etc that exist due to ... -
Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... does not cure things like dot crawl etc that exist due to ... -
Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... composite picture comes up fine, dot crawl and all.
But ... -
Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... composite picture comes up fine, dot crawl and all.
But ... -
Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
Toastrack trouble[IMG]http://i44.tinypic.com/11lq7id.jpg[/IMG] Sorry about the picture size, cant figure out how to make it smaller! Anyway, the pic says it all, th…
Goody!!!
Don't you just love that pixel-perfect RGB out? After years and years of colour bleed and dot crawl, it's music for the eyes!
Nice Speccy you've got there, mate!Small MonitorShowing off my new toy which I think is pretty good seeing as I was getting very limited access to the TV and its too cold to go out to the man cave …
... quality on the Spectrum+. The dot crawl is down to caps needing ...a few questions1. When will emulators use pc vga capabilities to emulate the uhf tv output accurately including phosphoric delay and crosstalk synchronization 2. W…
... see realistic 80's TV dot crawl then why are they currently ...+2A/+3 composite modHi, Anyone has experience doing a composite output mod for +2A/+3? (yes.. I also have a working RGB) A while ago I did one based on the instruction…
... . The idea is to prevent dot crawl.
It's possible ... no effect to me, the dot crawl being just as bad with ...Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…
... . There was some flicker or dot crawl if I remember correctly.
Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…
... like feeling... not counting the dot crawl... :p
Now I ...ZX48 svideo modI have modded a ZX48 to have svideo output. The end of C65 that goes to TR2 (its an Issue 2 zx 48 ) has been lifted to get Chroma. Luma is taken fro…
... stuck with the composite mod? (dot crawl hurts my eyes) :(Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
I tried this approach.
Overall picture was not much different but I did notice a slower dot crawl.
This was done on an issue 4A.+2 Grey Composite question.Hello all, Long time reader first time poster and all that...... Probably a daft question which has been asked hundreds of times, even though I ca…
... Spectrum has completely asynchronous dot and colour clocks so ... in the speed of the dot crawl.
(From ... same crystal source as the dot clock, the number of ... this causes the overall dot pattern to have a 2 ... This is why the dot pattern in a 128K ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
... , typical 48K composite full of dot crawl. No miracles here - composite is ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
... the output from the speccy. Dot crawl is still present though.
Does your mod reduce dot crawl to a large extent vis ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
To fix dot crawl, buy a 128k/+2/+3 machine and use a RGB connection :D
Or for 16k and 48k machines, buy a SPECTRA RGB interface :D
[I][B]Mark[/B][/I]Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
[QUOTE=1024MAK;766669]To fix dot crawl, buy a 128k/+2/+3 ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
[QUOTE=1024MAK;766669]To fix dot crawl, buy a 128k/+2/+3 ... have some "control" over the dot-crawl effect (and even make it ...
