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SRAM replacement for lower 16KSome time ago I wondered if it were possible to replace the lower 16K RAM of a 16K/48K Spectrum with a single SRAM chip. You know, those pesky 4116 D…
... follow later, but a nice schematic should do for starters. Some ... />
[LIST]
[*]Checked the schematic *thoroughly* against my modded Speccy ... this thread) is appreciated
[*]Schematic should not be understood as ... -
+2 keyboard problemsHi there. I'm new to WOS, please be gentle :-) I've just bought a +2A off ebay, having given it a thorough clean (inside and out - it was thick wit…
... /> I've just bought a +2A off ebay, having given it ... -
issue 2 board c34 getting hotHi All, Can anyone help with c34 getting hot very quickly? I`ve got an issue 2 board, there is no `buzz` from coil. yet the spectrum initalises to co…
... . I`ve looked at the schematic and C34 is presumably a ... -
Detecting Spectrum modelsIs there any sure-fire way a program can detect the model of machine it's running on (48K, +, 128, +2, +2A, +3, clones) even when running in the 48K …
... running on (48K, +, 128, +2, +2A, +3, clones) even when running ... -
RGB-Output (interface) for rubber 48k / Spectrum+I wonder if there is interest for a small RGB-interface for the rubber 48 k / Spectrum+. I developed a schematic using a very small number of parts.…
... k / Spectrum+. I developed a schematic using a very small number ... -
Tasword +2[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0008857"]Tasword +2[/URL] and [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0008864"]…
... /infoseekid.cgi?id=0008864"]Tasword +2A[/URL] is listed with Alchemist ... doubtful as as to the +2A version ever was an official ... -
New Spectrum Game - Kuiper PursuitYou know how it is, you're flying around the outer limits of the solar system when you spot enemy fighters massing in the Kuiper belt. There's nobod…
... USR 0 mode on the +2A or +3. Have fun, and ... -
New Spectrum owner - Newbie questionsHi, I just got my first Spectrum in the post today +2a) and I'm looking for some advice on a couple of things: Firstly I'm not the biggest fan of j…
... Spectrum in the post today +2a) and I'm looking for ... despite them fitting into the +2a joystick ports, they?re not ... since the ports in a +2a are Sinclair Interface 2 and ... -
More questions on video cablesI was trying to find out why American TVs don't have Scart inputs, and I found this: [QUOTE]SCART is a french invention and only used in Europe. Th…
... connecting my 128K and my +2A (with composite video mod) to ... -
Dust covers for our SpectrumsI was looking for a way to have custom dust covers made for my 128K and 128K+2A. One stays on a shelf all the time and the other one stays on top of …
... for my 128K and 128K+2A. One stays on a shelf ... -
Cheetah 125+ QuestionI have a question - which I've been looking for the answer to for nearly 7 years. I plugged in a Kempston Joystick interface into a +2, and I have a…
... had died. I have a +2A now but I am not ... -
Now joystick interface troubleHi people, Just got my speccy +2a loading from a headphone jack I mounted to it, (thanks to everyone on here who helped) But just realised my dk'…
... br /> Just got my speccy +2a loading from a headphone jack ... doesn't work with my +2a :-x
... joystick with my black +2a, please help.
... not working with my +2a (unless somebody can recommend ...
Also maybe my +2a (black) has a faulty interface ... -
Now joystick interface troubleHi people, Just got my speccy +2a loading from a headphone jack I mounted to it, (thanks to everyone on here who helped) But just realised my dk'…
... br /> Just got my speccy +2a loading from a headphone jack ... doesn't work with my +2a :-x
... joystick with my black +2a, please help.
... not working with my +2a (unless somebody can recommend ...
Also maybe my +2a (black) has a faulty interface ... -
Twister mother of CharlotteI have tried to load the game "Twister Mother of Charlotte" but the emulator crashes, and I don't know why...would this game load in a +2A?? I am thi…
I have tried to load the game "Twister Mother of Charlotte" but the emulator crashes, and I don't know why...would this game load in a +2A?? I am thinking to buy it, but I don't know If it will load... -
Rom upgrade(s) for the Humble spectrum +2 (not 2a or 2b)Hello there my fellow forum chummies, I was thinking today, after reading all this lovely rom burnery stuff, is there a way I could update the ROM o…
Hello there my fellow forum chummies,
I was thinking today, after reading all this lovely rom burnery stuff, is there a way I could update the ROM on my +2.
would the be any project that allows for extra decoding and addressing of ... -
Need to amplify output of voice recorderHello all! 1st post, so be nice to me... Pleeease! Well. I have several Spectrums (working: 3x 48k, 1x +, 1x 128k "Toaster", 1x +2 and 1x +2A; bust…
... "Toaster", 1x +2 and 1x +2A; bust: 3x 48k including my ... -
AY LPT InterfaceI've found by my Friend an Old AY-3-8912 Chip last week. On saturday I have made interface for LPT for PC. And Plugin for EmuZWin. And now I have rea…
... this DLL and Schema here... (Schematic is one of that most ... -
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... Speccy, a 128K/+2, a +2A/+3 or Pentagon and adjust ... -
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 -…
... the phase 3 functional-level schematic next, as staring at approximately ... resistors of the phase 1 schematic.....) -
Anybody program?I know some BASIC from my Spectrum +2A days. I'm trying to learn some Java at the minute from the following online course, courtesy of Stanford Unive…
... some BASIC from my Spectrum +2A days. I'm trying to ... -
ANN: ZX Spectrum +2g ROM setI'm working on another modified ZX Spectrum. This one is based on the +2A. There's quite a lot of work to do on the hardware but the ROM set is prett…
... one is based on the +2A. There's quite a lot ... ZX Printer.
For +2A owners who don't use ... -
Quadrax - Compatibility problems - help!I bought this game last month and when I tried to load it today...it crashes in my +2A!!! Sh*t!! the game was expensive to get, and now I can't play …
... today...it crashes in my +2A!!! Sh*t!! the game was ... -
Free to good homeHi all Just been given a faulty +2A, I need the AY but the Z80 and a copuple of other chips are socketed, so if anyone needs them or whats left of t…
... /> Just been given a faulty +2A, I need the AY but ... -
ZX Spectrum 128K +2A for saleHi, I've just bought a Sinclair ZX Spectrum 128K +2 from a car boot sale. The seller said it came with 200 games, but I've counted 151 tapes in total…
Hi, I've just bought a Sinclair ZX Spectrum 128K +2 from a car boot sale. The seller said it came with 200 games, but I've counted 151 tapes in total(but alot of the tapes have several games on them, so maybe it totals 200), alot of them are home made ones ... -
RGB to VGA convertor for ZX (clones)[img]http://s44.radikal.ru/i106/0908/1a/28c90d0ca25b.jpg[/img] [img]http://s15.radikal.ru/i188/0908/f2/c1d66b5f6d4f.jpg[/img] It's GOOGLE translatio…
... with ZX128 models (also +2/+2A/+3):
- absent HSYNC ... .7 MHz)
( +2/+2A/+3 use crystal 35.469 ... -
Seikosha GP-50S questionI have this old Speccy printer without the original power supply. I know it needs a 18.7V - 600mA DC power supply. Unfortunately I just have a maxi…
... have a maximum 12V - 1.2A universal PSU with same type ... -
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…
... models (16/48/128/+2/+2A/+3...)
9 Pentagon 128k ... Spectrum +2
13 Spectrum +2A
14 Timex TC 2048 ...