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Wanted: RGB SCART cable for heatsink 128K and ULA for issue 3 ZX SpectrumHi all, I'm after an RGB SCART cable for a heatsink 128K as well as a replacement ULA for an issue 3 ZX Spectrum (Ferranti ULA from memory). Can an…
... as well as a replacement ULA for an issue 3 ZX ... Spectrum (Ferranti ULA from memory). Can anyone help ... -
ULA Replacement WORKS !Hi chaps. Lots of activity over the last couple of weeks, and _finally_ we have [B]a working ULA replacement[/B] !! The analogue components such …
... we have [B]a working ULA replacement[/B] !!
The ... -
Timex questionI've been writing a program for CCG2008 and it actually has a use for the 512x192 mode of the Timex computers. I read up about port 255 and how the d…
... the 512x192 mode of the Timex computers. I read up about ... Spectrum but not on a Timex! :confused:
Eventually I ... funny location. Why does the Timex keep SP at around $61F6 ... -
What audio cable do I need to connect a ZX-81/Timex Sinclair to a cassette recorder?Subject line says it all: What audio cable do I need to connect a ZX-81/Timex Sinclair to a cassette recorder? Paul
Subject line says it all: What audio cable do I need to connect a ZX-81/Timex Sinclair to a cassette recorder?
Paul -
Keypad on the ZX-81/Timex Sinclair?I'm having a bit of trouble with the shift key on my Timex Sinclair. I have to hold it down and then press a corresponding key. Shouldn't I just be a…
I'm having a bit of trouble with the shift key on my Timex Sinclair. I have to hold it down and then press a corresponding key. Shouldn't I just be able to press it once and then press the other key?
Paul -
Timex Sinclair 1000 on EbayHi folks, i've got a complete Timex Sinclair 1000 on ebay if anyone is interested [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=22…
... /> i've got a complete Timex Sinclair 1000 on ebay if ... -
Inside the ULAI've recently updated my Blog with the news that I've managed to get inside a 6C001E ULA and have got close up images of the die. I'm currently back-…
... to get inside a 6C001E ULA and have got close up ... -
Spectrum ULA Book AnnouncementFurther to getting inside the ULA, I've turned my ramblings and lab book into a more professional book that you can all own! I'm putting a lot of ef…
Further to getting inside the ULA, I've turned my ramblings ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... of mine sent me a Timex 1000 from the US. I ... composite signal out of the timex would solve the problem but ... get PAL out of a timex 1000? I see a FR2 ... -
ZX81 ULA 2C210E wantedHello, I'm in need of a working 2C210E (not the earlier 2C184E) ULA chip used on zx81s and Timex1000s. These were sold on ebay for 9 quid each some …
... 2C210E (not the earlier 2C184E) ULA chip used on zx81s and ... -
128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... perfectly if I cooled the ULA (with cooling spray). The first ... measuring the signals of the ULA I found out that the ... the RAS pin of the ULA. Finally I placed a 180pF ... ) even if I heated the ULA with a hair dryer.
ULA gets so hot, it is cracked open!Hi everyone. I have bought a rubber-keyed 48K and the seller said he was selling it as "for spares/repair." Sure enough, it turns out it doesn't work…
... took it apart suspecting the ULA was dead. It turned ... I immediately noticed that the ULA had a crack in the ... this time and the ULA started to get so ... gut feeling that replacing the ULA wouldn't fix the ...
What might make an ULA get sooo hot that it ...Spectrum/Timex users from WarsawI'm looking for Spectrum/Timex users from Warsaw. Are there any?
I'm looking for Spectrum/Timex users from Warsaw. Are there any?MicroDrive ULA replacement - best way?I have a mirodrive playing up, odd motor sound, sometimes it reads ok sometimes not. Just wondering if its worth replacing the ULA in it, and whats …
... if its worth replacing the ULA in it, and whats the ... a look. I have a ULA chip about the place.
ULA Schematics CompleteHi all. Just a note to say that I have finally produced some readable schematics for the 48K ULA :-) I've also uploaded a few pages from the book -…
... readable schematics for the 48K ULA :-)
I've also ...Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…
... +2A
14 Timex TC 2048
15 Timex TC 2068
[B ... zx clones[/B]
128 Timex TS 2068
Where: ZX Printer ULA's and ZX interface I ULA'sIs there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX S…
Is there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX Spectrum ULA, but I have never seen these anywhere?ULA Hacks?During some of my madder experiments back in the 80's I discovered some interesting ULA hacks such as being able to read the raster position through …
... 's I discovered some interesting ULA hacks such as being able ... because I knew that the ULA kept changing and I would ...Timex keyboard overlay scans neededPlease take a look at these scans. I apologize if some of the links don't work at first. Sometimes they do, sometimes they don't. [url]http://brunof…
... /> [url]http://brunoflorindo.freehostia.com/timex/wip/[/url]
... A lot of people have Timex computers with keyboards in that ... to help and has a Timex computer with the keyboard and ... 'm trying to concentrate on Timex computers now. :)
...Spectrum+ upgrade kits and Timex printerDiscoveries from my old collections. Two unused (one even completely boxed) Spectrum+ upgrade kits. These include the keyboards, cases, connectors et…
... than one roll of paper) Timex Sinclair 2040(?) Printer for Spectrum48 ... that does not work with Timex printer, heh.
Can ULA kill other componentsIn my search for a problem I used a ULA6C001E-7 on a board that had a ULA6C00IE-6 chip. Q1) Should this have worked? Q2) After this experiment both …
ULA Plus and Interlace.May be a bit late to suggest this, but here goes. Did the original Speccy ULA actually output a proper PAL interlaced image, with timing pulses on a…
... />
Did the original Speccy ULA actually output a proper PAL ... frame?
Now, does ULA Plus generate a proper interlaced ...ULA Price Poll - You get to chooseIt is difficult to set the price of the book. If it is too low I will undersell my efforts, too high and I overcharge. So choose what you would be w…
... content not only documents the ULA circuit, but also full details ... of the Ferranti ULA range, images of the 6C001 ... ULA internals, both optical and scanning ... technology that was the Ferranti ULA, or the principles and techniques ...ULA equivalent?Gives it an ULA equivalent for the ZX 48K? Or not because the ULA is a custom chip. Micky
Gives it an ULA equivalent for the ZX 48K? Or not because the ULA is a custom chip.
MickyTIMEX SINCLAIR 2068 (Silver)Finally I've got it: [img]http://8bitcollective.com/items/images/Timec2068.png[/img] (and you, Bruno, thought I would never get one ;) ). The pl…
... the 2068 ROM with a 2048 ROM and turn it in ...Earliest ULA datecode ??I'm on a mission to find the earliest ULA datecode. Ie, when the first batch of ULA's were manufactured. The earliest picture of the Spectrum circu…
... mission to find the earliest ULA datecode. Ie, when the first ... batch of ULA's were manufactured.
ULA - and Sinclair may have in ... />
The earliest issue 1 ULA datecode I have is 8217 ...Molex Keyboard Connectors for Sinclair ZX Spectrum MotherboardOver the years I get asked every now and then for replacement keyboard connectors for the Sinclair ZX Spectrum motherboard. I have at last managed t…
... the Timex-Sinclair models (TS-1000, TS-1500 and TS-2048) and ...Timex Inc. in the "Public Domain"Thanks to Our Very Own Bruno, Timex Inc. has [URL="http://www.worldofspectrum.org/showwrap.cgi?permit=houses/Timex.pmt"]granted distribution permissi…
Thanks to Our Very Own Bruno, Timex Inc. has [URL="http://www.worldofspectrum.org/showwrap.cgi?permit=houses/Timex.pmt"]granted distribution permission[/URL] for their stuff.
Thanks Bruno!ZX 48K issue 4a with ULA 5?I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later. Micky
I got a ZX 48K PCB. It works but it has a ULA 5. I thought on the issue 4a is a ULA 6 or later.
Micky+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... [/URL] says:
[quote]The ULA bug which causes snow when ... .[/quote]
Will the ULA bug appear on the Spectrum ...
