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power supply for +2 greyJust bought a fully working +2 grey but it dont have a power supply. I did see it working though so i do know it works. Whats the voltage and amps fo…
[U][B]ZX Spectrum Mains Power Supply Units[/B][/U]
... /> 9V DC at 2.1A
2.1mm DC power plug wired centre ... -
power supply for +2 greyJust bought a fully working +2 grey but it dont have a power supply. I did see it working though so i do know it works. Whats the voltage and amps fo…
ok i just bought a +2 grey power supply on ebay from dataserve so I know it will work with the computer -
+2 empty casing questionJust wanted to know is a +2 gray's casing the same as a +2a or b as I have a grey but would rather the black casing thats on an A or B model.
... wanted to know is a +2 gray's casing the same ... much larger cutout for the power supply connector -
Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…
... for a transistor because your circuit shows a crude but (almost ... that minor fluctuations in the power supply might cause the same, does ... -
Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…
... how much time the power supply needs to stabilize, but ... />
1. The power supply has to raise its voltage ... .
2. Once the +5V rail supply is active and ... converter uses the +5V supply, so this stage cannot ... reset state. Stages 1, 2 and 3 added together ... -
My FrankenspectrumHey all, I originally posted this on the Raspberry Pi forums, but thought people here might be interested also. Inspired by the guy on Flickr who m…
... changes.
To remove power from the machine previously, you ... the rear or unplug the power supply. While this was in keeping ... br />
These are basically 2.5mm holes drilled into the ... only squeeze 1800mAh of rechargable power inside, and I'm not ... -
ZX Spectrum Stuff I am sellingSelling all these games in 1 bundle for the sum of ?20 .. postage to be worked out once I know who is interested. Small Case Renegade Enduro Racer T…
+2 grey Power Supply ?5 (?4 postage UK heavy ... [/IMG]
+2 grey Scart Cable ?5 (?2 postage UK)
This will only work with +2 Grey models although it might ... /> Joystick Port Converter Cable ?5 (?2 postage UK)
A handy ... -
Which is the most unusual/bizarre peripheral you have for the Spectrum?For me, I think it's the British Micro Grafpad. [url]http://www.worldofspectrum.org/hardware/feat10.html[/url]
... bizarre. I got a Spectrum +2 with keyboard stickers to show ... with 2 GB CF card. All is supplied by an ATX power supply ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... , as this capacitor is a power supply line decoupling capacitor. I don ... is part of the reset circuit, which is a 5V dc ... circuit, so [U][I][B]if[/ ... -
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. …
... the temperature.
Issue 2 Spectrums tend to get hotter ... 're using an original ZX power supply, using a lower voltage alternative ... a bit. An 8V regulated supply would be ideal, but 9V ... the centre pin of the power input connector must be the ... -
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. …
... measure the voltage of the power supply (as in this case a ... in a diode bridge rectifier circuit.
C = I/(2F ... you would like in the circuit.
[IMG]http ... to do a Thevenin equivalent circuit to analyse the specific transformer ... -
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. …
... direction of "simple" unregulated dc power supply theory...
[B ... , thats a total of 2.2V lost as two diodes ... unregulated / non-regulated dc power supply unit depends on many variables ... workings of a "simple" dc power supply...;-)
[I][ ... -
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. …
... too. Again with my issue 2 spectrum
Off load ... using my old issue 2 with an overvolting power supply. Only one thing ... -
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. …
... voltage as either 2V or 2.5V and the minimum input ... /> The internal mini switch mode power supply in the Spectrum uses both ... -
Anyone using an RGB SCART cable with a +2A/+3 and LCD TV?In [URL="http://www.worldofspectrum.org/forums/showthread.php?t=44697"]a recent thread[/URL], I mused: [quote]Can +2As be composite modded? If so, I…
... is that between the 12V power supply input and the BLANKING pin ... of reistance in-line, and supply that to the blanking pin ... of the telly.
2 - (What I did) - Open up ... -
Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…
... something related to the power supply on the +2 board. Are any of ... -
Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…
On a grey +2, the best places to connect ... (which is connected to the power supply 0V / ground via the tab ... -
48k+ Power Supply quickieGuys, Can someone tell me if I can safely use the power supply of the 48k+ in a 48k? My guess is yes, but I don't want to do something I will regre…
... the 128K and the grey +2 on a 48K Spectrum.[/QUOTE ... struggling to find a damn power supply in portuguese online sales sites ... -
Linking spectrums - parralel processing is it possible?Was there any way to do this, (excluding disk, tape and microdrives)?
... use and more practical.
2) To learn about electronically interfacing ... 'd need rather a large power supply and some cooling system plus ... -
Your latest retrogaming purchaseAs there is another thread about gaming purchases, It would be nice to know your latest retrogame adquired, preferably Spectrum, but of course other …
... , a TC2048 and a 128k+2 Grey.
The 48k ... +2 didn't test it, because I don't have a power supply ... . Does anyone knows if the 48k one works with the +2 ... : Now that I have a power supply, tested it on my old ... -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... the problem is due to power supply fluctuations (old capacitors do not ... very simple reset circuit (with no "brown-out" circuit). And part of ... so that if the +5V supply is low, it resets the ... back-up power controller chip to supply the SRAM with power instead of ... -
IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…
... the 5V line at power-up
2. Bad edge connector contact ... supplied from a standard Sinclair power adaptor, by repeatedly switching the ... the AC side of the power supply.
If nevertheless, ... ]by pressing the button for 2.5 seconds[/B].
< ... -
Another broken SpeccyHi all I have been given another ZX Spectrum, this time it has a really odd problem as you can see in the video: [URL="http://youtu.be/ZOSiBEYQD7w"…
... you checked that all the power supply voltages are present?[/QUOTE]
All seem as expected. Tried 2 different PSUs also. None of ... -
Defective +2 grey with only random coloured screen while powering onHi, so the story goes: After buying myself an divIDE and a grey +2, this runs well for a few days. But while playing a game the picture stucks and …
... to check out the little power supply based on TR4, replace RAM ... ULA, but on a grey +2 - I have no real idea ... would start checking out the power supply area of the PCB though ... -
Defective +2 grey with only random coloured screen while powering onHi, so the story goes: After buying myself an divIDE and a grey +2, this runs well for a few days. But while playing a game the picture stucks and …
... would start checking out the power supply area of the PCB though ... a +2 ServiceManual for controlling the voltages on the power supply area.
2?s power supply...
Regards,
Another odd +2 board - no composite video partsI was checking a stack of grey +2's, and found a board where the modulator was missing. First I thought that someone must have pulled it off to use o…
... 18ma.
For me, on 2 Tv,s Cync, fail to ... is video signal and not power supply,is also not stable.First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
... electrolytic capacitor in the mains power supply unit...
Normally there ... due to having gone short circuit - but this is rare).
First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
... check the power supply, centre negative. I also have a plus 2 power pack ...Didaktik Gama and M manualsI?m looking for manuals for the Czech Spectrum clones Didaktik Gama and M. Thought this would be an easy task, but I couldn?t find any user or servic…
... , that are mentioned in #2 and don?t even know ... I found and translated:
Power Supply
It is located in ...
image
Stabilized power supply contains two fuses: one of ... /> Any adjustment in the power supply can have serious consequences on ...One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…
... another VR from a second +2 and here I measured 10 ... switching step-up power supply, much like the 16K bank power supply in the ...
