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Strange object, anyone know what it is?[url=http://postimage.org/image/oh3m6vqrp/][img]http://s18.postimage.org/oh3m6vqrp/IMG_9597.jpg[/img][/url] [url=http://postimage.org/image/nsurnxs1x…
... =bleugh;628178]Looks like a power supply and multi channel oscilliscope input ... just a potted filter circuit with a few capacitors / resistors, etc ... probably be 2 channels and X sync for the 3 BNC inpouts ... -
Freecycle haul, need help identifying pleaseJust picked all this up! some of it is obvious.. but some items are hard to identify! [URL=http://imageshack.us/photo/my-images/254/dscn2552c.jpg/]…
... see (12)
2. Programmable joystick interface for games ... as required.
3. Curious edge connector extender for ... not really a rampack) / overloading power supply.
4. Heard ... Could be for anything really with a 9pin d socket and ... -
Ferguson MA20 via SCART to modern TVHello, I am a newbie here but I visit this forum on regular basis to find interesting informations about computers of my life - Speccies. I have a s…
... TTL or analogue ?
2) I would like to use ... interface. Do you think cheap power supply like this [url]http:// ... such interface?
3) How about "inverted sync" signal ... the original spectrum power supply because the rgb ferguson works with 10-11v ... -
All going well with the 3.5" driveFolks, all going well thanks to you lot on here... I now have a +3 with an external 3.5" floppy and can write .dsk images using samdisk - all very e…
... . Bought a cable and power supply for a 3.5" drive from ebay ... all worked well.
2. Using an ordinary floppy drive ... block. Left switch turns internal 3" drive on and off, right ... Density 3.5" disks
4. Use a PC with an ... -
Just bought a Spectrum+. Doesn't work. Red bars on screen.Hi all, Something of a noob here. Having recently been on holiday, I came across a Spectrum+ in a box, with a collection of games in a shop, and, af…
... confused with the noise of the power supply.
2. You ... it yet) and then, power on the computer. You ... second, and power on again. Do this with the reset ... colour than white. Then, with the Spectrum powered on, ... OK.
3. It might happen that the ... -
ZX Spectrum power supplyHi, I'm looking for a small lightweight power supply that would be a perfect substitute for the original, it's meant for a video patched zx spectrum…
... need a 9 volt 2 amp plug-pack with the center pol ... -0X1-7mm-Tips-UK-Switching-Power-Supply-9V-2A-UK-Main-Adapto ... &hash=item19d2413ca8]9 volt 2 amp ?3.50 Including postage (eBay ... -0X1-7mm-Tips-UK-Switching-Power-Supply-9V-2A-UK-Main-Adapto ... -
Over clocking cpu desktop pc.Is it easy? any good online guides? is it worth doing?
... had this rig for about 2 years and I play ... setup copes perfectly with everything. Crysis and Battlefield 3 all work ... down on was Dragon Age 2, and that still looked ... power supply). GFX gamer cards generally now require power directly from the power supply ... -
Altera CPLD vs Xylinx FPGAI will dig into the world of FPGA's, mainly to find something that can replace one or more GALs for my current and new projects. And it's never bad t…
... you're comparing like-with-like with CPLDs - does the ... XC9500-XL series are 3.3v supply but all the I ... be programmed on every power-up by the flash ... It's about 1/2 the resources of a ... /> XC95288 - 288 macrocells - about 2 Spectrum ULAs.
It ... -
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=…
... bought a +2A 2 weeks ago for ?3.20, so this ... way of adapting any other power supply to suit the +2A? ... br />
An ATX supply can be used but is ...
Finally there are power supplies available with just 12v, 5v, and ... t have a -12v supply for the serial port ... -
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 …
... without load on the power supply were between 11.33 ... />
2. The voltages without load on the power supply were between ... />
3. The voltages with load on the power supply were between 8 ... 4. The 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 …
... My +3 died around 2003, I lent out my +2 to ... and also a +2 and a +3 in fantastic condition. ... welcomed my replacement +3 back in 2010 with open arms and ... hours together although the power supply exploded so I am ... porn mags mixed in with their computer mags??? I ... -
SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... 2 with 5C112E ULA
[*]Issue 2 with 6C001E-6 ULA
[*]Issue 3 with ... 6C001E-6 ULA
[*]Issue 4A with 6C001E-7 ... Spectrum power supply rating of 1.4A. I tested with several ZX power ... measuring them at around the 3.4V mark. There was ... -
+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…
... resistors to make the +3 circuit more like the ... on the +3, which has a 2.2K collector resistor ... low pass filter with R62, the 2.2K collector resistor. ... divider driven by the power supply. Whereas the pdf shows ... have been because the +3 circuit used collector to ... -
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 …
... speed will be far below 3.5Mhz.[/QUOTE]
It ... from the device. Since the power supply to the chip (ground and ... mitigate this - solid ground and power planes are very helpful, also ... ULA implementation on a 2-layer board with a ground plane that ... -
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. …
... 2/+2A or +3 models with internal two joystick ports 100% compatible with interface 2 ... Contain big rom chip with possibility use external ZX128 rom ... each reset/power-on), on ZX128,+2,+2A,+3. This is ... FDC controller and external power supply bust be used only ... -
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…
... power on the +2, change these 2 and also change ztx213 with ... before you change these 3 compoments. (power supply parts)
with an old pcb, ... be liquit and then with a quick move ... />
replace the 3 compoments above and put ram ... -
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…
... 2.
The Issue 2 board had problems with the on-board power supply ... Issue 3 with a new display circuit and power supply circuit. ... 2 could not work with OKI 32K ram chips, where the Issue 3 ... /> All Issue 1, 2 and 3 boards had small modifications that ... -
16 colours on a Timex Sinclair 2068I'm putting a few videos up on YouTube, the first one shows the colours on the TS2068. [url]https://www.youtube.com/watch?v=1tJ1qIMcTUE[/url] Brigh…
... decided to use the channel 2 / 3 switch as a ROM select ... the loudspeaker, is that the power supply on the TS2068 is incredibly ... mode circuit altogether and going with a normal linear circuit.
Finally, with the RF output now free ... -
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…
... rule this out.
2. CPU: I've found quite ... be a suspect.
3. ROM: Usually very reliable, but ... power supply rail. This can often be detected by making resistance measurements: With ... power off, measure the resistance between 0V and pin 2 of ... -
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…
... 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 ... you motherboard issue (1,2,3, etc). The mods is ... and sometimes as with the issue 2 there is also ... -
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 all ... ports are modified to work with Standard-joysticks. The sound output ... SRam. Unusual is my Slim 3,5" floppydrive which fits perfect ... adapter with 2 GB CF card. All is supplied by an ATX power supply ... -
At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... 3 mice and 2 joypads in the box which may work with ... with an atari user keyboard cover on the machine, the power ... unit" with a pc style ribbon cable and kettle type power socket ... a large power supply aswell as a packet with documentation and 3 floppies in -
ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... /> Before we continue with the TR8 / TR9 power supply circuit, lets get an ... idea if the +12V supply line ... has a short.
So, keep the "(3 ... For details of a typical +2 set up (plus some manufacturing ... -
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 ... reistance in-line, and supply that to the blanking pin ... of the telly.
2 - (What I did) - Open ... 1000 Ohm resistor in PARALLEL with the one inside, thus ... looking for a 4:3 instead to try it. -
Linking spectrums - parralel processing is it possible?Was there any way to do this, (excluding disk, tape and microdrives)?
... 1) To learn about/experiment with parallel processing - There are probably ... and more practical.
2) To learn about electronically interfacing ... a valid reason.
3) To learn about how to ... d need rather a large power supply and some cooling system plus ... -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... problem is due to power supply fluctuations (old capacitors do ... the SRAM within 2 microseconds of the supply voltage dropping ... fact a fast ( 2 ? 3 ns ) 3-state buffer, with ?I-off? ... back-up power controller chip to supply the SRAM with power instead of ... -
Some problems with 2 ZX Specturm board'sHi, last week i got some ZX Spectrum stuff. Also 2 ZX Spectrum 48K's, one in the orginal case the anoter one in a DK'tronixs case. Both have problem'…
... TR4 (ZTX650) with a ZTX651/2/3 or equivalent fixes the power circuit, however ... an overload on the ZX power supply that brings all voltages down ... the usual 8-9V (9V supply voltage minus 0.7V) ... would check voltage on the power supply jack, and the current draw ... -
ZX Spectrum and add-on temperaturesImre Jakli from Hungary sent me some interesting pictures which I think are worth to share. These are about temperatures he measured with a modern to…
... issues with the ISSUE2 board using the 1.4A power
supply (1 ... too low, and with the 1.4A power supply I got 13.3V ... 7805, it decreased the power consumption by 2 Watts.
The ... .jpg[/img]
ULA 5C112E-3
[img]http://gigant ... -
Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…
... , other than the power supply
Fact c: The +3 is dead, and ... is.
2. Therefore we can come up with the hypothesis that ... were accidentally connected to +12V, with luck IC15 sacrificed itself by ... showing the behaviour of a +3 with the reset button held in ... -
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…
... to plug the Spectrum?s power supply into a
switch ... turning the power on and off.
6.3 If the ... pressing the
button for 2.5 seconds. [/QUOTE]
My ... the power lines, and the 'System Restore' panacee. That procedure ends with ...
