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Spectrum + / kempston interfaceI'M VERY NEW to the cult of spectrum (have introduced myself elsewhere) so please don't hurt me for asking what may seem a silly question to others. …
... and both my Issue 4 Spectrum+ and my Issue 3 rubber keyboard model ... -
+2 (Grey) and AT/ATX PSUAny ideas on the best way to power a grey +2 board from an AT or ATX PSU? Looking at the schematic, I could do this one of two ways... 1: Bypass th…
... 'm trying to build an Issue 3 +2 board into a tower ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... the ROM. It is an Issue 3 rom IIRC.
I ... the articles in Format Magazine (Issue 3.01 onwards) for hints about ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... the ROM. It is an Issue 3 rom IIRC.
I ... the articles in Format Magazine (Issue 3.01 onwards) for hints about ... /> I see in Format volume 3, issue 4, page 11:
SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... following models:
[LIST]
[*]Issue 2 with 5C112E ULA
[*]Issue 3 with 6C001E-6 ULA
[*]Issue 4A with 6C001E-7 ULA< ... , measuring them at around the 3.4V mark. There was a ...The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…
... br /> I use Spectrum + and +3, with joystick and divIDE interfaces ... will work fine in the +3.
For ... or my +2B & +3 {although I must admit I ... former rubber key (issue 3), my ebay bought issue 1 (again ... rubber keyboard) or the issue 2 that I have}.< ...Calling all Spanish +3 owners...Please see [URL="http://www.worldofspectrum.org/forums/showpost.php?p=693601&postcount=40"]this post[/URL] Could my search for photographic evidence…
[QUOTE=Zetr0;693762][B][I]looks like Guesser has found his Unicorn![/I][/B][/QUOTE]
Indeed :D
I don't suppose you have a +2B ISSUE 3 motherboard lurking there somewhere too metalbrain? :lol:Calling all Spanish +3 owners...Please see [URL="http://www.worldofspectrum.org/forums/showpost.php?p=693601&postcount=40"]this post[/URL] Could my search for photographic evidence…
[QUOTE=guesser;693764]Indeed :D
I don't suppose you have a +2B ISSUE 3 motherboard lurking there somewhere too metalbrain? :lol:[/QUOTE]
Greedy, aren't we? :lol:Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... I had to modify (Issue 2, Issue 3 and Issue 4A). So in fact ...Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... I had to modify (Issue 2, Issue 3 and Issue 4A). So in fact ...Price of nice condition issue 1 48K Speccy?I recently came across a 'really great example' issue 1 48K Spectrum on the Internet for ?250 with RF Cable, Mic ear Cable, PSU, Manuals and the Hori…
... /> I purchased the Issue 1 some time ago last ... />
001-435617 Issue 2 - 48K
001 ... Issue 2 - 48K
001-250399 Issue 2 - 48K
001-240145 Issue 3 ... - 48K
001-216139 Issue 2 - 48K ... or 3.
I also have Issue 2 ...ZX Spectrum manufactured by SAMSUNGI just got hold of a 48K ZX Spectrum Issue 4S of which was manufactured by SAMSUNG. I was not aware that Samsung manufactured Spectrums under licence…
... about such Spectrums. They mounted Issue 3 motherboards but their most noticeable ...ZX Spectrum limited edition?What's this, in your opinion? [url]http://www.ebay.it/itm/SINCLAIR-ZX-SPECTRUM-48K-Very-rare-/140978416835?pt=Vintage_Apple_Macintosh&hash=item20d2f…
... a standard 48K spectrum. Usually Issue 2/Issue 3.
Look [URL ...48K loudspeaker questionsI wonder if someone would know what "40 ohm T.V. type" means? This is the description of the 48K loudspeaker given in the service manual. I?d also li…
A speaker designed to fit headphones with a impedance of 32 ohms may work.
I believe that this has been successful on a issue 3 or above board.
[I][B]Mark[/B][/I]+2 issue oneI can't remember seeing this model board before, so here we go: [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153957.jpg[/IMG] [IMG]http…
On the +2A/+3, +2B, and +3B boards the issue number is the ... would come after the Z70500 Issue 3.
Of course it ...+2 issue oneI can't remember seeing this model board before, so here we go: [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153957.jpg[/IMG] [IMG]http…
I have UK issue 3 with very low serial number and it is the same as made in Taiwan. However I have never seen Taiwan issue 1.
I think board number 70700 says it is later model and bugs are in fact fixed.Which ULA?Just a quick question, more of interest rather than immediate need... I am thinking ahead about the repair of an Issue 2 board, and also an Issue 6A …
... components by swapping with an Issue 3 board that I know is ... a suspect ULA in my Issue 6a board, which is about ... the 'right' ULA for the issue board, so this is something ... really want to get the Issue 2 up and running, but ...ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... Spectrum?
Does this issue 3 Spectrum use a normal Sinclair ...ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... 't remember having seen an issue 3 board in a long time ... is unusual to have all 3 major chips socketed - the Spectrum ...ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... - it's an Issue 2 Spectrum, not an Issue 3. And therein lies ... up correctly, using my other Issue 2 as a comparison.
Issue 2 and notice that one ...New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…
... in (a 128K +3 and a rubber key Issue 4, the CMOS ... 2012).
The other issue with the edge connector CLK ... side. Since the CPLD is 3.3v it meets the Vin ... . I don't have an Issue 3 though, and I may just ...New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…
... other Spectrums (though not an issue 3) that have modern Z80s and ... />
Back to the problematic issue 3 Spectrum and with the good ... difference. I note that this issue 3 had been butchered in a ...+2 issue oneI can't remember seeing this model board before, so here we go: [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153957.jpg[/IMG] [IMG]http…
... -043054 made in Taiwan Z70500 Issue 3 that I have open at ... the date codes, my Z70500 Issue 3 has earlier dated chips than ... /> Also interesting that the Z70700 Issue 1 silk screen is printed ...Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…
... reswap the ULA from my Issue 3, and guess what.. IT'S ... the ULA over to the Issue 3 board.
So the ...A quick ZX Spectrum + restorationI bought a ZX Spectrum + the other day it was untested and in a state didnt cost me much and i had it today only to find the real state. Key 3 was al…
... /> I've come across an issue 3 board which has obviously been ...TR1 and TR2 replacementCan anyone tell me the correct replacement part for these? This is for an Issue 4S btw
On all Issue 3 and 4A boards, I found that TR1 and TR2 face each other, means "round" side faces "round" side resp. the sides with the names on.Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... help, but I had an Issue 3 board some time ago, which ...A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…
... to work with an Issue 3 48k, and an Issue 4a 48k+, and ...Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …
... .
Even on later issue Spectrums (which have the heatsink ... , I left my Spectrum (a issue 3 IIRC) on for many, many ...
