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Back in the day when schools had 'a' computer.I stumbled uppon this photo when looking for something completely different on-line. It got me thinking and reminiscing. Do you remember when schools…
... the year we got an Issue 1 16K Spectrum which you could only ... -
48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... four distinct versions of the Spectrum 48K ULA:
[ ... Original ULA, found on Issue 1 and early Issue 2 boards. Have a ... in machines containing this ULA (Issue 2 boards).
[*]6C001E- ... 's excellent book, "The ZX Spectrum ULA".
... -
48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... four distinct versions of the Spectrum 48K ULA:
... Original ULA, found on Issue 1 and early Issue 2 boards. Have a ... 's excellent book, "The ZX Spectrum ULA".
... person designed the complete ZX Spectrum with that complexity (ULA ... -
Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…
Wow :wink:
[url]http://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-Issue-1-16K-Computer-W-Fawn-Keys-In-Excellent-Condition-/371029098248?nma=true&si=0873EoRsm5G9NdXpbSsUaO7VW74%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557[/url] -
Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... -
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1/+1 - ZX Spectrum(issue 1-2/3-6) 6 - Scorpion ... GMX
2 - ZX Spectrum +128,+2 7 - KAY-1024SL ... br /> 3/+3 - ZX Spectrum +2a,+2b/+3 8 - ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... been too busy to do Spectrum stuff. Sad times.
... summer project. The poorly Issue One spectrum, however, I think I ... inspiration:
1. Patient details: Issue One Speccy, 16k.
Spectrum has a fit and either ... -
48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
... the scale and sets to 1, all other settings above ... that simply read 1 (ie, doesnt do anything ... a meter shows just a 1 in the left side ... range.
On the issue 3 Spectrum that I have to ... hand, my meter measures 39.1 ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
[QUOTE=Trafferth;768946]1. (With 4116 RAM installed): Speccy ... 't well tested with the issue 1. I suspect address logic high ... case, I'd expect the Spectrum to operate correctly, but with ... -
Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... is my favourite (my old Spectrum+), a good BAD example: :lol ... 2.84V. The ISSUE 1 ULA can do only 1.48V.
The ... -
CRASH on Kindle - 1986Another year, another thread: CRASH issue 25 is now available for Kindle from [url]www.crashonline.org.uk[/url]. (As usual, the website is also updat…
... a free local paper - their issue 1 featured an article on CRASH ... on CRASH.
Secondly, 1-2 King Street, formerly the ... they're currently selling ZX Spectrum-themed bags. -
Your Spectrum RegretsSpeccy things that you have done (or haven't done) and have regretted them since. Here's mine... (in no particular order). 1) Sold my Spectrum 128K…
1. Sold my original early Issue 2 Spectrum (bought new).
2. Sold ... parallel converter (ran off Interface 1 RS232 via Speccy BASIC)
ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…
... a VHS. Got an issue 3 and 1 ZX81. Still getting the ... a cursor.
The issue 1 has all chips in sockets ... Zorn has done for the Spectrum?
I do like ...RAM issue for potential 48k buy?Hi guys I've got a 48k in my sight for ?20 but... it has an issue: [QUOTE]"I tested the computer and only displayed a distorted screen. Coloured …
... /> 1 74LS00 quad NAND gate logic IC. (IC24 in a Spectrum)
1 74LS32 quad OR gate ... IC. (IC23 in a Spectrum)
1 74LS157 quad multiplexor logic ... />
1 ULA suitable for use in an issue 2 Spectrum.
ZX81 ULA questionRecently, I got a nice bundle of kit comprising of a ZX81, Memotech keyboard, PSU and brand new 16K Sinclair Memory pack. The ZX81 has a ULA with no…
... .
The Spectrum in question is an issue 1 with ULA marked ... definition. The module on an Issue 3 is fine
Issue 1s original. The Issue 3s have all ... when saving on the 2x Issue 3s. I'll check the ...16k to 48K upgradeHi everyone I was just wondering if anybody knows if it is possible to upgrade a 16k Speccy to a 48k with the required RAM chips. If this is possibl…
... /forums/showthread.php?t=44503#1"]http://www.worldofspectrum.org/forums ... /showthread.php?t=44503#1[/URL]. Contact me via the ... information on this. In an issue 2 Spectrum, if you use 4164s ...Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…
... .co.uk/itm/Sinclair-ZX-spectrum-computer-48k-/251683025553?pt=UK_VintageComputing_RL ... this is a lovely looking Issue 1 and the box is fantastic ... .ebay.co.uk/itm/Issue-1-Sinclair-ZX-Spectrum-16K-Beautiful-Condition-Very ...PCB thicknessHas anyone here got a micrometer and access to a 48k and a 128k grey? Im convinced the greys have a thinner pcb which would explain certain devices a…
ZX Spectrum 16k issue 1 board
Board only (area ... had solder added, thinnest) =1.79mm
Area with tracks ... on bottom = 1.69mm
ZX Spectrum 128k+ (Grey) Issue 3
1.74mm
ZX Spectrum 128k+ (Grey) Issue 1 coming up ...PCB thicknessHas anyone here got a micrometer and access to a 48k and a 128k grey? Im convinced the greys have a thinner pcb which would explain certain devices a…
ZX Spectrum 128k+ (Grey) Issue 1
Board only (area with ... no solder resist either side) = 1 ... solder resist on both sides) = 1.62mm
On edge connector ... contacts =1.71mm
Area with tracks ...Photo of the Spectrum +2 electronic board.Does anyone know where I can find a photo of the down side of the electronic board of Spectrum 128k +2? I mean NOT the side which you can see in …
I think that you are after a picture of the track side of the PCB of a Spectrum 128k +2 grey.
I have a issue 1 PCB and a issue 3 PCB. I can take a picture. Which one do you want a picture of?
[I][B]Mark[/B][/I]Photo of the Spectrum +2 electronic board.Does anyone know where I can find a photo of the down side of the electronic board of Spectrum 128k +2? I mean NOT the side which you can see in …
... a Spectrum 128k +2 grey.
I have a issue 1 PCB ... and a issue 3 PCB. I can ... would like a picture of issue 3 PCB.ZX SPECTRUM REFURBHi, I have an old ZX Spectrum here that I want to fix up cosmetically, the machine seems to be fully operational so I wouldn't want to mess around in…
It's my understanding that issue 1 machines were mail order only, ... seems that even though the Spectrum was announced in April 1982 ... ship until July. The earliest issue 2 machines have datecodes from ... window for the sale of issue 1's.
Not ...ZX SPECTRUM REFURBHi, I have an old ZX Spectrum here that I want to fix up cosmetically, the machine seems to be fully operational so I wouldn't want to mess around in…
... more resilient.
The Issue 1 Spectrums were available for the ... and come with Issue 2 keyboard mats, not issue 1 (Sinclair had a ... ULA. Luckily the early Issue 1 motherboards have a soldered-down ... - practice on a cheap Spectrum first! It's not easy ...Ways to identify spectrum issues with out opening them?A good while ago, I'm sure I saw some posts on here about how to identify what issue speccy you have by looking in the expansion port to see what hea…
... holes in the bottom. Issue 1 has trimmer adjustment holes for ... means issue 5 or 6, and almost certainly a Spectrum +, ... though some rubber-keys are an issue 5 ...
In summary:
Issue 1: Heatsink down side, trimmer holes ...Issue 1 Speccy - ?6,000!Just seen this: [URL="http://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-Issue-1-Console-Serial-No-001-000009-RARE-/141543731934?pt=UK_VideoGames_VideoG…
... mark up from what this Spectrum was initially listed at ... co.uk/itm/Sinclair-ZX-Spectrum-Console-/141541381901?&_trksid=p2056016 ... co.uk/itm/Sinclair-ZX-Spectrum-Console-/141541381901?&_trksid= ... well that it was an issue 1. The seller then maybe did ...3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…
... have. I suppose that your Spectrum is Issue 1 or 2, isn't ...3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…
... have. I suppose that your Spectrum is Issue 1 or 2, isn't ... />
Yes it is an issue 2. I will definitely look ...Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…
Nice cheap low-serial 16k Speccy [URL="http://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-16k-Issue-1-Fawn-keys-Dead-Cockroach-ZX-Printer-/121557450035?pt=UK_VintageComputing_RL&hash=item1c4d637d33"]here[/URL]Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…
... .co.uk/itm/Sinclair-ZX-Spectrum-16k-Issue-1-Fawn-keys-Dead-Cockroach ...DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... tryout the modification on an issue 1/2 board, just for testing ... ]http://alistairsserver.no-ip.org/spectrum/schematics[/url]
The ...DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... ]http://alistairsserver.no-ip.org/spectrum/schematics[/url]
The ... are:
[B]+2b Z70833 Issue 1 (no cap on the CPU ... interface.
[B]+2a Z70830 Issue 2:[/B] This one had ...
