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Issue 1 only?The thread on the +2 prompted me to start this one. I got an issue 1 Speccy 16k in 1983 for my birthday and then a Fox Electronics 48k upgrade for m…
... to make it into a 48K machine, it was NOT an ... memory card expansion PCB. NOTE: It was a PCB, not individual chips ... -
Self made membraneHi fellowes, as you probably know, the keyboard membrane seems to be the weakest hardware part in Spectrum. It is not so hard to find in eBay or in s…
... I've built his design for a 48K keyboard with great success ... -
"The Spectrum is a computer for GIRLS !!!"[URL="http://www.worldofspectrum.org/hcc2006/index2.html#theory"]http://www.worldofspectrum.org/hcc2006/index2.html#theory[/URL]
... my eye was the ZX 48k model being held by one ... a testimony to the brilliant design of the speccy from the ... -
"The Spectrum is a computer for GIRLS !!!"[URL="http://www.worldofspectrum.org/hcc2006/index2.html#theory"]http://www.worldofspectrum.org/hcc2006/index2.html#theory[/URL]
... my eye was the ZX 48k model being held by one ... a testimony to the brilliant design of the speccy from the ... -
Dead Spectrum diagnosis and desolderingI have two dead Spectrums - one I'm pretty sure is caused by bad memory, and the other - well, perhaps a bad ROM, perhaps a bad CPU (it gets halfway …
... all display the same screen design. You'll only have a ... , and I've repaired several 48K machines that just needed replacement ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
... or 7 quid for a 48K rubber key membrane is fair ... , tactile key switches on a PCB bolted onto the Spectrum case ... -
Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... 've settled on a design, complete with PCB layouts for etching etc ... -
Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... 've settled on a design, complete with PCB layouts for etching etc ... -
DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…
... , so long as you use 48K BASIC mode only (and use ... in kit form (as the PCB alone would prove expensive for ... -
DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…
... words and notes to the design of divIDE:
0 ... the firmware - to page original 48k rom in - out 1ffdh,4h ... -
Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…
... that ANY part of the 48k (or 128k) of the normal ... cost up (due to increased PCB size and perhaps even requiring ... -
Keyboard Problem?Hey all. I'm Dave I'm in my last year of college before I go to University. I'm in the UK. I got a +2 a while back when I first told my mum and dad…
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Rubber keymats for original 48K Spectrums. ?5
Membranes for ...
ULA chips for the 48K ?5
UM1233 Modulators ?5 ... built a keyboard PCB and fitted it inside a 48K rubber key ... -
Keyboard Problem?Hey all. I'm Dave I'm in my last year of college before I go to University. I'm in the UK. I got a +2 a while back when I first told my mum and dad…
... the top half of the 48K case. That's what I ... close the case as the PCB is slightly too thick. BUT ... -
Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... kids. i had a spectrum 48k from their intial release when ... you know about him).. helped design many of the later amstrad ... -
Edge-connector video...Been reading some old speccy books recently that were surplus to requirements at the local library...:-) ...and in one book it mentions that the ed…
... decent video-feed from a 48K spectrum?[/QUOTE]
I ... are interferences between leads on PCB.
Much better was when ... -
What was the best speccy model?What was your favourite speccy model (non-clone)? A close one for me between the 48k rubber keys and the Sinclair 128k machines. Rubber face just w…
Yeah, the 48K rubber keyed one (although the ... up with the compact case design deserves some respect for a ... -
What was the best speccy model?What was your favourite speccy model (non-clone)? A close one for me between the 48k rubber keys and the Sinclair 128k machines. Rubber face just w…
[QUOTE=Winston;174093]Yeah, the 48K rubber keyed one (although the ... up with the compact case design deserves some respect for a ... machine looking just like the 48K spectrum, but with a SD ... -
Audio input on a +2would it be possible to connect an external tape recorder to the socket at the back,or would something bad happen?
... op-amp chip on the PCB is being used properly and ... the same level as a 48K rubber keyed machine.
Help make Retro Gamer greatI'm more than happy with the articles that are now appearing in Retro Gamer, but I want it to become far more of a hub for the retro community than i…
... (160 x 100mm) double sided PCB with a Z80 CPU, Z80 ... intend to put the entire design here, plus instructions on how ... at home. The whole thing (PCB layouts, ROM code etc.) will ... software (GPL'd schematics and PCB layout software all available for ...Audio input on a +2would it be possible to connect an external tape recorder to the socket at the back,or would something bad happen?
... /load leads directly to the PCB if you wish. No extra ... also supplied with the original 48K, so "compared to older models ...Audio input on a +2would it be possible to connect an external tape recorder to the socket at the back,or would something bad happen?
... is no area on the PCB with missing components - the PLAY ... for various revisions of the 48K Spectrum - so I can't ... single pin like on the 48K, or whether there are two ...New Spectrum Game Available to DownloadTo celebrate the forthcoming 25th anniversary of the Spectrum's launch I've written a new game for the machine. This one is a significant departure …
... whether we should write 16/48K games any more, or stick ... these days, if the game design dictates it then you might ...Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
[QUOTE=48K;175122]I have a question: When you design the new graphics ...Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... the ULA in a new design Speccy buildable by a hobbyist ... fits on a single 160x100mm PCB. The main space saving is ...toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…
... the edge connector layout and design a PCB for a Speccy diagnostic ... . I actually laid out a PCB for that last night :-)toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…
... the edge connector layout and design a PCB for a Speccy diagnostic ... . I actually laid out a PCB for that last night :-)[/quote ...Best looking Speccy?So, we've had the poll for the best Spectrum - but how about the best looking one - and why? For the best one, I voted the rubber 48K, because of it…
... second the notion - the 16K/48K rubber fella is by far ... most attractive - whats more the design hasnt really aged, a true ...Amstrad +2 Diagnostic BoardCan anybody help I wish to buy the Diagnostic Board that connects to the I/O strip at the back of the Amstrad ZX Spectrum +2. Many thanks Martin
... least for the normal Spectrum 48K) - last night I scribbled out ... sitting here, but I'll design it so it can take ...Rubber Key Spectrum BoxesAfter buying quite a few boxes i have found that in all there are 7 ndifferent box designs and its possible to know which issue speccy isin the box w…
... machine itself, alongside a yellow 48k sticker.
The box itself ... "48k Ram" inside on both side flaps (part of the design, not ...RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... which ignores bright of Speccy 48K
3: bad combination ... .
It made me to design different circuit - analogue based, with ...
