World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.006s
<1234567…34>
  • ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3&nbsp;ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…

    ... from Pin16 of the ULA, 5V, ground and a video output wire ...
    retrogamemart retrogamemart June 2015 Hardware
  • ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3&nbsp;ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…

    ... also connected to the necessary 5v, ground and signal.Cheers  
    retrogamemart retrogamemart June 2015 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... , A11, A12, A13, A14, A15, +5V, Ground, A0, RD and IOREQ.
    Renegade Renegade January 2018 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... , A11, A12, A13, A14, A15, +5V, Ground, A0, RD and IOREQ.
    Black_Cat Black_Cat January 2018 Hardware
  • +2 grey 5v reg pinoutjust a quickie, had to buy a new 5v reg for the grey, now i cant remember which wire went to which pin! got brown red and black, im guessing the blac…

    ... , had to buy a new 5v reg for the grey, now ... black, im guessing the blacks ground but can anyone tell me ...
    Macc Macc January 2011 Hardware
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ... I use?

    2. Ground. That's the easy one ... box case.

    3. +5V. This can supposedly be taken ...
    Bacon Bacon June 2003 Sinclair Miscellaneous
  • s-video SuccessHaving tried the various composite video fixes for the +3 etc, I was left feeling a little cold at the results, and was about to give up my quest for…

    ... is to weak)
    Ground and +5v can be obtained from 2 ...
    dasteph dasteph April 2004 Sinclair Miscellaneous
  • Spectrum +2B on a PC PSUHello, Id like to attach my Spectrum +2B to a PC Power Supply. Im currently using an ATX power supply with my Amiga CD32. I searched on here for so…

    ... +5V points, two +12V points, one -12V point and one Ground point ... .

    I take it that I connect the ground ... to the ground of a molex connector, then both +5V to the 5v ...
    chaoticjelly chaoticjelly January 2006 Hardware
  • 5v Transformer.I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?

    I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?
    dekh dekh March 2007 Hardware
  • Irrelevant QuestionThis is an indeed irrelevent to the speccy scene question but since i searched and i searched and coulnd't find any help elsewhere, i desided to ask …

    ... pin and 5V on another (the third one is ground).
    Here ...
    gtsamour gtsamour October 2007 Hardware
  • Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…

    ... PCB traces and the ground plane underneath. After fiddling ... instance, says run a ground plane under the crystal. ... the xtal traces and ground planes. Looking at various ... breakout board... showed a ground plane under the crystal. ... 3v chip with 5v tolerant inputs).
    Winston Winston November 2007 Hardware
  • +2 RGB to PSOne LCD ScreenHi, I'm trying to connect my +2 RGB to a PSOne LCD Screen. What pins do I need to use - I'm not bothered about sound whilst testing. I have put an '*…

    ... Name Description
    1 Gmd Ground
    2 Rt Right Audio ...
    3 Gnd Ground
    4 Lt Left Audio ... -Gnd Video Ground *
    9 B Blue *
    10 +5v +5 Volt ...
    rja4096 rja4096 July 2008 Hardware
  • 'Ground Force Zero'This is very spooky...I've just been going through some of the Spectrum games we got in recently and have come across one called: Ground Force Zero. …

    ... have come across one called: Ground Force Zero.

    The ...
    doodleatic doodleatic September 2008 Games
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ... , each chip needs 12V, 5V and -5V and if the power is ... line to logic high, ie 5V, the resistor is a current ... low it connects this to ground pulling it low, the current ...
    Womble Womble August 2010 Hardware
  • Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …

    ... off rather than giving a +5v signal for 1, or 0v ... , the power (5 volts and ground). With the black cable, the ...
    Winston Winston October 2010 Hardware
  • Two-resistor fix for +3 sound distortionOver at Zonadepruebas, mcleod_ideafix has done a circuit analysis of our favorite distorted sound output: the issue 1 +3 AY chip sound output, and fr…

    ... can go up to 4.5v, and the negative part ... down to 1.5v.

    On choosing ... from the emitter to the ground. This gives the following ... The emitter is reconnected to ground with the 680 ohm resistor ... drops this down to 0.5v p.p, more than ...
    Winston Winston December 2010 Hardware
  • Kempston/Atari to Sinclair joystick adapterHi all, I've got a +3 and two competition pro gamepads (atari/kempston interface) so I want to build an adapter. As far as I can tell I just need to…

    ...
    2 - common (is this ground?)
    3 - n/c
    6 - fire
    7 - +5v
    8 - ground
    9 - n/c ...

    There's no 5v on ... the sinclair - what does this connect to? Does ground ...
    garethadams garethadams August 2011 Hardware
  • 2 blown PSUs in one dayI got a SAM Coupe today, and the PSU started to smoke as soon as I turned it on. Since the Spectrum +3 PSU looked up to powering the SAM, I wired to…

    ... between the composite video and ground, which is higher than ... to make me lose the 5V supply - my hastily constructed ... -12V were fine, but 5V was more like 3V.
    5V pins to 12V, resulting ... wondering why there wasn't 5V before I shorted the ...
    JohnH JohnH October 2011 Hardware
  • black +2 go awayHi, All what is my problem if i have the proper voltages inside my black Spectrum +2 black (+5v+12v) in all the important IC's , and not have any vi…

    ... my black Spectrum +2 black (+5v+12v) in all the important ... a little history , i touch ground of my pc external speakers ... to my black +2 ground ( i made a small modification ...
    gorski gorski October 2011 Hardware
  • Missile Ground ZeroI really loved playing [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0003229]Missile Ground Zero[/url] back on my Spectrum +2A, along with a…

    ... /infoseekid.cgi?id=0003229]Missile Ground Zero[/url] back on my ...
    MattLamb MattLamb April 2012 Games
  • Spectrum +3 FavourCan a kind soul with a multimeter and a +3 measure the resistance on the power socket between the 5V and the ground? I have a dead +3 that only has 0…

    ... power socket between the 5V and the ground? I have a dead ... has 0.6v on the 5V rail internally when powered up ...
    Womble Womble June 2012 Hardware
  • Need some advice about electronicsI have wired up an ATX power supply to power my spectrums through a DC-DC converter that gives 9V from the +12V rail. It works well. However, I also …

    ... pcs here. It runs on 5V, and I thought I was ... wired up a connector on +5V from the power supply.
    ground or something like that. Anyone ...
    Johan1973 Johan1973 June 2012 Hardware
  • Anatomy of a bad M1No, not the motorway (although at times the tarmac M1 goes about as well as this one...) But the bad M1 problem that seems to occur most with issue …

    ... could be measured relative to ground.

    [img]http://photo ... signal closer to 0v than 5v (the M1 line is active ... it should sit at near +5V when it's not active ... ohm resistor between M1 and ground seems to support this too ...
    Winston Winston July 2012 Hardware
  • Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…

    ... unused address line always at +5v.

    2. Dead cockroach ... the chip's Vcc or ground) - CMOS ICs should always have ...
    Winston Winston August 2012 Hardware
  • Correction of +2 hardware errorsThis is a collection of various pieces of information picked up from various places, including a lot from this forum. I have edited it and reworded i…

    ... this big capacitor to the 5V line would cause a drop ... 100pF from this line to ground. In two cases I had ...
    1024MAK 1024MAK January 2013 Hardware
  • ZX48 svideo modI have modded a ZX48 to have svideo output. The end of C65 that goes to TR2 (its an Issue 2 zx 48 ) has been lifted to get Chroma. Luma is taken fro…

    ... originally.

    Connected to +5V (collector) are 2 x BC547 ... other end is connected to ground. Chroma and luma is fed ...
    Johan1973 Johan1973 October 2013 Hardware
  • Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :( I …

    ... be missing it's -5V, the +12V, +5V are ok

    OttO OttO November 2013 Hardware
  • Interesting 48K failureI thought I'd recount a failure I've not seen mentioned before that I saw tonight while fixing a 48K issue 6 board. The background: The initial fail…

    ... if powered up without the -5v Vbb supply.

    When ... checked was the voltages and -5v was not present and all ... tested the voltages again. Surprisingly, -5v was now present, so TR4 ... because it's shorted to ground, and TR6 has been turned ...
    Winston Winston December 2013 Hardware
  • Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…

    ... common lead is connected to ground (is that right, or do ... they use the +5v?), so when you press a ... data bus are connected to +5V or ground, depending on the joystick ...
    joefish joefish January 2014 Hardware
  • ZX-FPGA dev boardI've been sporadically working on this: [IMG]http://photo.alioth.net/tmp/spectradvi.png[/IMG] It's an FPGA dev board for the Spectrum. It uses a CP…

    ... grounds, one 3.3v one 5v). There is also an HDMI ... some LEDs. If supplied with 5v it'll operate independently from ... board, 4 layers (with solid ground and power planes).

    Winston Winston June 2014 Hardware
<1234567…34>

Latest Posts

  • I bought an accoustic guitar. How do you play it?
    dm_boozefreek on 7:51PM
  • Goodbye Z80
    zx1 on 7:11PM
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on 6:29PM
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on 6:17PM
  • I am currently watching.....
    Antiriad2097 on 5:05PM
  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21

HitBox

Word Docs Hits
5v 3K 4.9K
ground 4.3K 5.3K

Related Threads

  • 5v Transformer.I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?
  • 'Ground Force Zero'This is very spooky...I've just been going through some of the Spectrum games we got in recently and have come across one called: Ground Force Zero.<…
  • Ground ZeroDid anyone ever play this text adventure back in the day?<br /> <br /> I remember it making the whole 'era' even more scary. As if the cold war wasn'…
  • +2 grey 5v reg pinoutjust a quickie, had to buy a new 5v reg for the grey, now i cant remember which wire went to which pin! got brown red and black, im guessing the blac…
  • now lost the +5v from my +3 psuthe voltages i get from it are<br /> -12v<br /> +12v<br /> +0.61v<br /> <br /> what part needs replacing in the housebrick that is the PSU?<br /> <br…
  • R-785.0-1.0 5v 1A DC-DC converter Group Order.As discussed in the other thread there seems to be interest in getting a consignment of these devices.<br /> <br /> I can get 50 @ [strike]?4.40[/str…
  • Missile Ground ZeroI really loved playing [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0003229]Missile Ground Zero[/url] back on my Spectrum +2A, along with a…
  • Vertical Shoot'em Up's: Ground Vehicles.Ok, the topic says it all. We're talking about tanks, jeeps, cars, pogo sticks and futuristic vehicles (as in Marauder).<br /> <br /> There's no real…
  • Cheapest place for 5v Recom 1.5AAnyone know the cheapest place to get these in singles from? Got a speccy project in the works
  • Spectrum Missing -5vMy Spectrum is "almost" booting, just when you expect the (C) 1982 Sinclair Research to appear it just displays flashing squares on the screen :(<br …

Related Searches

  • psu faulty 5v
  • psu 5v
  • joystick 5v
  • missing 5v
  • missing minus 5v
  • 5v
  • low resistance 5v
  • 1 5v battery
  • lm1881 5v
  • 221 5v battery 22
  • no 5v
  • ground zero
  • 5v regulator
  • 5v regulator replacement
  • volage 5v
  • 5v missing
  • 5v too high
  • 5v very high
  • what produces 5v
  • 5v ground short spectrum

Copyright © 2024 World of Spectrum