-
Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... lap.
They are:
48k issue 3 / ULA 6C001E-6 / Serial ... : Green 001-536248
48K+ Issue 6A / ULA 6C001E-7 / Serial ... -
Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…
... board is a ZX SPECTRUM 48K ISSUE 3B.
I manage soldering ... -
Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
I have just come across another Spectrum 48K - issue 3 001-488275 (green writing)
Modulator - 8326, ULA is 6C001E-6 (8335) - any more info needed? -
Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
... numbers mentioned here apply to 48K issue 4B, and [I]will[/I ... ] be somewhat different for other issue boards!! -
ZX 48K loudspeaker with 8 Ohm possible?Is it possible to change the loudspeaker from the ZX 48K with a model which has only 8 Ohm? Micky
The existing transistor ZTX450 (48K > issue 2) can handle 1 Amp. ... general, there is an interesting issue. Let's assume that there ... -
Broken ram or what?Hi! I own ZX Spectrum 48K. When i run command PRINT PEEK 23732 + 256 * PEEK 23733, I should get answer 65535? But i get 49151. In my machine the upp…
... same symthoms with a Spectrum 48K issue 4B: thye ROM memory check ... -
Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
Spectrum 48k Issue 3 001-466896
Spectrum Grey +2 Issue 1 Z70700 -
Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
Spectrum 48k Issue 6a 1984 149-464865 Portugal, Dead ULA, possible memory faults -
ZX Spectrum 48K, issue - works fine till it gets hot (?)ZX Spectrum 48K, issue 2, works just fine, tested with Winston's diag board. At a certain moment in time however, it seems to run hot and stalls. Whe…
There is also an ULA issue which may cause some kind ... VRAM in a standard Spectrum 48K, issue 3B.
The replacement ... -
Spectranet updateOK, so I've not written an update here for a while...so here's a quick summary, the gory details are on the Spectranet news page on my wiki. * Hardw…
... changed the Z80A in my Issue 4S and it now "Talks" to ... Z80A chips were used in Issue 4/4S boards. God bless the ... -
Made in KoreaJust a couple of questions. Were there many 48k Speccys made in Korea and when were they made?
... hold of. They're all Issue 4S boards as far as I ... -
Wanted: ZX81 or ZX SpectrumEither of the two will do. Should be complete in box, and all in good condition. I don't want ripped boxes, missing bits of Styrofoam, or no rubber f…
... out a nice rubber-key 48K Issue 3 for about ?100 (which ... -
Wanted: ZX81 or ZX SpectrumEither of the two will do. Should be complete in box, and all in good condition. I don't want ripped boxes, missing bits of Styrofoam, or no rubber f…
[QUOTE=Spirantho;536352]I can probably sort out a nice rubber-key 48K Issue 3 for about ?100 (which is about the going rate for a good one) if you like.
[/QUOTE]
Okay. It should be working as well, no six-pack logo, and no composite mod. -
Made in KoreaJust a couple of questions. Were there many 48k Speccys made in Korea and when were they made?
That's the one... but his is issue 2?! That doesn't sound right, I wonder if his has been switched. Mine is issue 4S.... -
Valuation HelpI am thinking of selling some of my sinclair items, and would like advice on valuation: Spectrum 48k (issue 1 with light grey keys) pre-release mach…
... on valuation:
Spectrum 48k (issue 1 with light grey keys ... ) pre-release machine
Spectrum 48k (issue 1 with light grey keys ... /> [/QUOTE]
If the issue 1 spectrums are working - they ... -
Wanted: ZX81 or ZX SpectrumEither of the two will do. Should be complete in box, and all in good condition. I don't want ripped boxes, missing bits of Styrofoam, or no rubber f…
... out a nice rubber-key 48K Issue 3 for about ?100 (which ... .uk/GOSH-WONDERFUL-Sinclair-Spectrum-48K-composite-/190529088429?pt=UK_VintageComputing_RL& ... -
Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back I could crack open one of mine, just someon…
... going to go for the 4s board mainly due to the ... replying. Do you want the issue 4s board blown up or are ... -
48k to 128k upgrade - problemsHi friends! I built 128k upgrade according to the [url]http://hw.speccy.cz/128krebuild.html[/url]. After I powered on my Speccy it said hello with s…
... this mod on my Speccy 48k+ issue 4B which I recived with ... is it worth to replace 48k ROM to 128k one (and ... Speccy platform, so my old 48k rubber (no mods - like a ... -
joystick interface working with divide?hi i have the ram 2 joystick inteface but cant get it to work with divide. is it possible?! regards
... />
1. 48K Rubber Keybaord (issue 3B)
2. 48K+ (issue 4B)
3 ... -
How faithful are you to Sinclair computers?Are you 100% faithful to Sinclair computers or do you divide your attention across multiple retro computers and consoles? I never had anything besid…
[QUOTE=maiki;602860]ZX Spectrum 48k Issue 2 was my first computer ... my C64, VIC 20, Spectrum 48K (with RAM turbo interface), and ... -
ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…
... says it's an [b]Issue 4S[/b]. Neither schematic nor layout ... .
- Looking the schematics from Issue 4A/B, I've tried ... -
ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…
... is currently configured. IIRC issue 4S is mostly like issue 4B, but if ... conversion circuit from a later issue? What matters is how it ... -
ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…
... , 6A does not mention an issue 4S. It says about 4B: it ... (22u) is omitted.
So 4S might have been an attempt ... -
ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…
... ][/URL]
This picture shows Issue 4S board. I don't think ... -
Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... 3 versions, on real Spectrum 48k (issue 3), without any additional peripherals ... [/url]
Real spectrum 48k passed whole tests, but zxmak2 ...ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
[QUOTE=Pegaz;629311]Just tested these two ulatest 3 versions, on real Spectrum 48k (issue 3)[/QUOTE]
Thank you very much! :)
Any screen for 128 model?48k+ CPU SocketThink I've bitten off more than I can chew... After the desoldering my z80 went without incident, no damaged pads, tracks etc. I expected the socket…
... blowing up on my ZX 48k issue 2. I had that phenomenon ...
