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Odd +2 / +2A cassette differencesUnless its just me... The cassette player keys, the icons are on the keys themselves on a grey +2 On a black +2A the keys are blank and the icons a…
... .uk/itm/Sinclair-ZX-Spectrum-2-and-power-supply-serial-number-GC16267-/200853909596 ... .co.uk/itm/Sinclair-Spectrum-2-With-Charger-/330833532831?pt=UK_VintageComputing_RL ... -
Odd +2 / +2A cassette differencesUnless its just me... The cassette player keys, the icons are on the keys themselves on a grey +2 On a black +2A the keys are blank and the icons a…
... .uk/itm/Sinclair-ZX-Spectrum-2-and-power-supply-serial-number-GC16267-/200853909596 ... .co.uk/itm/Sinclair-Spectrum-2-With-Charger-/330833532831?pt=UK_VintageComputing_RL ... /> That's not a Grey +2 :) -
Hardware for Fuse and other emulatorsok this is about hardware but not about the speccy so i didnt know where to put this. Anyway I am going to build a spectrum using the Pi and Fuse bu…
... which is a pentium 4 2.15Ghz, 2Gb ram and a ... is the size of the power supply.
I am looking ... -
How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…
... = 39 pins, + vga pins + ps/2 keyboard + tape I/O + sound ... course 150mA from a USB power supply cannot drive an Interface 1 ... -
Adding IDE to your Spectrum +2 A/B (or +3)Hello my fellow [B]WoS'ers[/B] [B]This is a shared thread with [url]www.amibay.com[/url] which you can [URL="http://www.amibay.com/showthread.php?t=…
... thing. Just bought a +2A 2 weeks ago for ?3.20 ... way of adapting any other power supply to suit the +2A? Also ... -
Adding IDE to your Spectrum +2 A/B (or +3)Hello my fellow [B]WoS'ers[/B] [B]This is a shared thread with [url]www.amibay.com[/url] which you can [URL="http://www.amibay.com/showthread.php?t=…
... Just bought a +2A 2 weeks ago for ?3.20 ... way of adapting any other power supply to suit the +2A? ... ;))
An ATX supply can be used but is ...
Finally there are power supplies available with just 12v ... t have a -12v supply for the serial port buffers ... -
Adding IDE to your Spectrum +2 A/B (or +3)Hello my fellow [B]WoS'ers[/B] [B]This is a shared thread with [url]www.amibay.com[/url] which you can [URL="http://www.amibay.com/showthread.php?t=…
... thing. Just bought a +2A 2 weeks ago for ?3.20 ... way of adapting any other power supply to suit the +2A? Also ... -
Treasure Island Dizzy 128k +2a modeHi all! I have a original black spectrum 128k +2a computer in my collection and quite a few games and im a big big fan of codemasters and the Dizzy …
... just to go with the +2 grey model but i remembered ... fun i had with the power supply cable into the speccy! so ... -
More stuff for saleBoxed plus, boxed rubber key, software and more, check the sig
... a really, really nice grey +2 for sale, did the TR4 ... on this. Comes boxed with Power Supply, ?75 or thereabouts.
[url ... -
+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…
... still need the 9v supply to generate the other ... is isolate the internal power supply circuits entirely and inject ... still present in the power supply circuitry to get it ... be to get a 2 Amp RECOM (or equivalent ... use a 12 volt supply with no other modifications, ... -
Speccy PSUI've grabbed a Speccy PSU from fleabay and it looks like a Speccy Plus PSU. After testing it with a multimeter it's kicking out 12V rather than the …
... voltages without load on the power supply were between 11.33 and ... br />
2. The voltages without load on the power supply were between ... voltages with load on the power supply were between 8.45 and ... voltages with load on the power supply were between 8.5 ... -
Does anyone still have the same speccie?The survey into the Games of the Year - and the question about what system you were playing 20 years ago - got me thinking. Has anyone on the forum …
... 2003, I lent out my +2 to somebody in the games ... restored it and also a +2 and a +3 in fantastic ... happy hours together although the power supply exploded so I am using ... -
SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... models:
[LIST]
[*]Issue 2 with 5C112E ULA
[*]Issue ... 2 with 6C001E-6 ULA
[*] ... getting close to the Spectrum power supply rating of 1.4A. I ... were due to the particular power supply used.
During my ... -
+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... is a discrepancy between the circuit on the [URL="http://www ... potential divider driven by the power supply. Whereas the pdf shows the ... have been because the +3 circuit used collector to base biasing ... this across to the +3B circuit diagram and added the extra ... -
1x XC9572XL or 2x XC9536XL?I'm working on some projects which do not settle with only one XC9536XL CPLD. Main reason is of course the lack of user pins on the XC9536XL, I need …
... from the device. Since the power supply to the chip (ground and ... current, the inductance of the power and ground supplies becomes an ... mitigate this - solid ground and power planes are very helpful, also ... CPLD ULA implementation on a 2-layer board with a ground ... -
2013 projects: new PlusD, DivIDE and MultifaceI have written about this before, but as I want to let these project be influenced by your opinions, I thought to create a separate topic about it. …
... 694704]Some ideas:
- Interface 2 clone, nobody wants to support ... ports 100% compatible with interface 2.
[url]http://www. ... 16 after each reset/power-on), on ZX128,+2,+2A,+3. This ... for FDC controller and external power supply bust be used only for ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... regulator only produces the +5V supply.
The -5V and + ... transistor based small switch mode power supply.
[QUOTE=deadeye;695349]I ... to diagnosing issues on a circuit board without a point of ... still worthwhile testing each dc supply with the meter on a ... -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
... first minutes when power on the +2, change these 2 and also change ... you change these 3 compoments. (power supply parts)
you need ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... one or more of its power supply connections (which is one of ... kill the DC-DC converter circuit), then it'll usually show ... it's quite likely the power supply circuitry will function correctly. If ... the diodes in the converter circuit and inspect the board very ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... you apply from your bench power supply? So long as you use ... the centre pin of the power input connector is the negative ... to the DC-DC converter circuit. Perhaps some shorted windings in ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... speccy power supply it and it outputs -13.2. I set my bench power supply ... polarity correctly from the bench power supply too), the only difference I ... -
48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... ;697100]OK, set the bench power supply to 9V, 1.4A
[/QUOTE]
The feedback circuit that stabilizes +12V is obviously ... -
Issue 4S AnnoyanceRecently ive been going through a few interfaces testing them and I stupidly inserted a "key-less" interface (didnt know at the time but should have …
... got 2 options:
1. -5V supply is dead.
2. -5V supply is ... anode of D18 in the power-supply.
It should normally read ... -
Issue 3 board... How to resurrect?Dear Everyone, Now I have a working 48k Issue 3, a sort of working Speccy+ (still having problems with the keyboard, more of that in another post) a…
... this out.
2. CPU: I've found quite ... a data pin and a power supply rail. This can often ... resistance measurements: With the power off, measure the resistance ... between 0V and pin 2 of IC15 - IC22 and ... for 5V and pin 2. You should get very ... -
CapacitorsSorry, another question... I've done a bit of looking around, although after a couple of beers this may not have been as systematic as usual, but I …
... to so that the circuit can oscillate at an ... other components in the circuit to tune the output ... circuit will depend on the maximum load on the power supply. ... is a load on the power supply. With no load, ... in a diode bridge rectifier circuit.
C = ... -
Issue 3 board... How to resurrect?Dear Everyone, Now I have a working 48k Issue 3, a sort of working Speccy+ (still having problems with the keyboard, more of that in another post) a…
... not always imply that the power supply is faulty. It is ... ripple waveform on the supply lines without an oscilloscope ... cause of the -5V supply not being correct. My ... per you motherboard issue (1,2,3, etc). The mods ... as with the issue 2 there is also an ... -
Spectrum +2 Grey Model ProblemsHi, I have picked up a couple of ZX Spectrum +2 and have a couple of problems which I would welcome some advice on please? 1. Both have loose power…
First of all try and resolder the power supply socket on the board. I have had several grey plus 2's with this problem. -
Who can identify this mystery box?While going through boxes of Spectrum accessories, I came across a small silver box with power, Mic, Ear, RX In, and TX ports, and a switch that says…
... produced this cable (but no power supply):
[IMG]https://dl.dropboxusercontent ... then I'd take just ?2.60 for it by Paypal ... -
Yet another glitchy graphics 48kHeyo, I'm new both to the forums (sorry if this is the wrong forum) and to Spectra I'm afraid, picked up a 48k from a steam fair sale thingy (not th…
... voltages.
The main power supply line in the Spectrum is ... are here:
[IMG]http://2.bp.blogspot.com/_seix_ku9EhI/TT2j182dSaI ... -
Spectrum 48k PSUHi, can anyone suggest an alternative off the shelf power adapter that will be compatible with the ZX Spectrum 48k? I've just picked an old machin…
[U][B]ZX Spectrum Mains Power Supply Units[/B][/U]
... at 1.4A
2.1mm DC power plug wired centre neg ... /> 9V DC at 2.1A
2.1mm DC power plug wired centre ...
