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Lawtronics RGB Schematics ?Hi folks, I have a Lawtronics RGB interface which only half works with my Amstrad CTM 644 monitor. I believe the problem lies with one of the resist…
... be able to build a PCB and make a new one ... -
Lawtronics RGB Schematics ?Hi folks, I have a Lawtronics RGB interface which only half works with my Amstrad CTM 644 monitor. I believe the problem lies with one of the resist…
... /> As for making a new PCB and building a few of ... -
Videoface?What exactly could you do with a videoface and what spectrums did it work with?
... to bring me some more pcb processing stuff that I put ... -
Videoface?What exactly could you do with a videoface and what spectrums did it work with?
Well, what can I say? If you rattle a few off, I'll be one of your first customers, as long as you don't charge megabucks.
What PCB material do you require? Have all sorts here waiting for me to use... -
"Unknown disk format"-error on Spectrum +3Hi, I have just gotten around to changing the drivebelt in my newly acquired +3. I tried to format one of the 3" disks I bought on eBay the other we…
... " to my +3 using my MF3 and RealSpectrum. This, however, did ... -
broken ZX SpectrumHi there I was given a dead ZX Spectrum years ago, and being bored today thought I'd try it again. Its a Sinclair ZX Spectrum with lovely rubbery key…
... to get a second working PCB and use that inside your ... -
"Unknown disk format"-error on Spectrum +3Hi, I have just gotten around to changing the drivebelt in my newly acquired +3. I tried to format one of the 3" disks I bought on eBay the other we…
... under it and check the pcb under the back of the ... -
How does a Speccy keyboard work?Hi again. I saw a post a while ago about the Speccy keyboard. I think it referenced an old magazine article. I have no idea how a keyboard membran…
A PCB layout of a keyboard matrix?
It was just the principle of how it worked I needed to know. I can build an adapter from that. :) -
SPECTRUM +3 NIGHTMAREGot my Specci +3 through the post this morning. The good news all the keys work and it turns on ok. The bad news the disk drive doesn't work. When yo…
... just bought a working +3 PCB and was thinking to fit ... it should be possible, +3 pcb is already mounted and works ... -
Can a CPU emite microwaves? And other questionsSome CPU/electrical questions for the more technical amongst us: 1. Some time back a bloke I knew, whose PC I used to repair, said that he'd read in…
... . The copper tracks on the PCB (and those that run through ... -
Mulitiface 1With a Mulitface 1, can you save games from tape and put them on disk on a +3? Or is it just compatitable with the 48/128k +2 models?
... backups created by the MF3 needed the MF3 present or they wouldn ... , just to cassette. Only the MF3 would have the necessary program ... you want to buy an MF3, then at this late stage ... -
Opus Discovery 3.5 inch disk driveWould one of these work on a +3 or +2a? So could you save games onto normal disks using a multiface 3 or another mulitiface (1 or 2?) for the +2a? W…
... use any Multiface except the MF3 on a +2a/+3. The ... a problem. but not the MF3.
It's easy ... -
SPECTRUM +3 NIGHTMAREGot my Specci +3 through the post this morning. The good news all the keys work and it turns on ok. The bad news the disk drive doesn't work. When yo…
... these) for Amiga. Indeed drives pcb has three 0 ohms resistor ... -
rom switchhow could one go about building a rom switch, to switch between +3 roms and +3e roms.
... the ROM socket on the PCB.
There is something ... -
Woody?s Tape2wav tested[quote] I've uploaded a new version of Tape2WAV to the same URL as given above. Any chance of giving this version a quick test? [/quote] Hi Woody, …
... you can make your own PCB's that's great, but ... -
some questionshello all, I havent been here for a while, but Im back, older and wiser (I hope). No more stupid spectrum OS ideas. Well I have a speccy + 2a and I …
... the output line on the PCB pads you're describing, you ... -
XLR-8 mastering utilities - help wanted!!Hello. Ironic I know given I wrote them! I can't for the life of me get the XLR-8 mastering utilities to work under emulation. It goes through the m…
... , including photos of the original PCB (which looks the same as ... -
When is a clone not a clone?If a Spectrum is built from scratch, using new components where available, is it a clone, copy or something else? See, I won an unpopulated Spectrum…
I may still do that with the 128K PCB I won at the same time.
I've always wanted a 100% hand built Spectrum, and as this is an Issue 6A, it's the "ultimate" 48K machine - unless there was an Issue 6B..... -
Multiface 3 QueryI've had one of these contraptions for a while but haven't got around(or can't be arsed!) trying it. But my question is, can I only copy 16k,48k and …
... onto a disk using the MF3. For this, you will need ... -
Spectum expansion port cable extenderI've got a wobbly +D (oo-er) which keeps causing my rubber friend to reset. I'm sure someone must sell cable extenders for the expansion port to com…
... fine, I prefer a proper PCB cleaning block - you could use ... -
Simple mass storage solutionNew simple interface project: [url]http://www.ppest.org/zx/zx.php[/url] - first project Storage media is Compact Flash card, interface has only o…
... a joystick interface, repair my MF3 and stuff like that. -
48K power supply coilHi guys, been thinking about making a small quantity of PSU coils for the original 16/48K machines. My problem is, although I can (and have, with gr…
... coil terminations too (and for PCB mounting etc). Hard to explain ... -
Tell me if I have done something badI cannibalised a pc case and a 20-year old microwave oven, in order to put the computer + disks in the oven. I loved that oven, you know, my mother b…
Thank you!
I'll bear it in mind. Now what about the grounding of the PCB? Each screw point was earthed before, and now they're not. Well, not all motherboards need earthing, but is it worth assuming that this one does? -
Extracting the Multiface ROM?Is there an easy way to save the contents of a real Multiface 128 ROM to tape, on a real spectrum, for the purposes of transferring it to PC for emul…
... them seems to match the MF3 in SPIN, but they need ... -
+3 soundhello there, just a quick-fire question today. i'm kinda keen on the idea of using my +3 quite a bit, particularly if i bother to to actually sort …
[QUOTE=guesser]might be a stupid question but why, on that pdf, are te resistors and caps the other way round, those series ones?[/QUOTE]
No good reason AFAICT. Probably a little more intuitive, or perhaps helps with PCB layout. -
+3 soundhello there, just a quick-fire question today. i'm kinda keen on the idea of using my +3 quite a bit, particularly if i bother to to actually sort …
... the tracks on the +3 PCB.
All of this ... -
Problems with my +2A DatacorderHey folks, Bought a speccy from ebay, but i think its fucked. What do you think? Basically it turns on fine, but when i try load a game nothing wor…
... deck - at least a new PCB, cos the audio amp chip ... -
Noisy 2A displaymy 2A gives a fairly good display until it has to generate sound or other cpu work, which interferes with the signal, giving some "cloudy" effects …
... back onto the +3 supply PCB and go back to the ... -
Joystick compatibility on the +2AHey folks, now my +2A is working, I decided to find some more problems (not really...I didn't "decide"! :( ), basically the joysticks won't work prop…
... . Have a look at the PCB, the voltages are clearly marked ...