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 0.002s
<1…15161718192021…34>
  • Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.

    ... best speed, you can use 'ripple' read or write order. For ...
    Shiru Shiru October 2008 Development
  • +2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …

    The capacitor is to smooth ripple, not filter spikes (an electrolytic ... is far too high) Excessive ripple tends to cause instability in ...
    Winston Winston November 2008 Hardware
  • +2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …

    ... a filter that reduces the ripple that
    is the normal ... result of rectifying AC. The ripple is reduced to
    such ... are connected
    parallel, regarding 'ripple'. No problem there!
    Sinclair ...
    roko roko November 2008 Hardware
  • +2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …

    ... /> Or 1.5 volts of ripple.

    Or using ... with 1.25 volts of ripple, so about 1/4 of ... it loses accuracy when the ripple voltage is much over 10 ... /> Now to know whether this ripple is too much, find out ... up to 2 volts of ripple if the output voltage from ...
    Winston Winston November 2008 Hardware
  • +2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …

    ... a 4700uF cap, the maximum ripple dropout would be around 1 ...
    gtsamour gtsamour November 2008 Hardware
  • RGB on 48KIs it possible to get better picture (RGB, or at least composite video) from ZX 48K without opening it? (using the expansion port only) I think there…

    ... inbound, but it provided the 12V output on the central pin ...
    Womble Womble November 2008 Hardware
  • Video Capture Cards?Well, looks my new speccys (a rubberkeyed 48 and a grey +2) don't want to play nice with my newish TV's tuner (or by connecting through my VCR, which…

    ... pin of the socket to +12V.

    I did this ...
    ingo ingo December 2008 Hardware
  • Ma20 Rgb InterfaceHello everyone , im a bit stumped on this one :) . Im wanting to convert the RGB lead to a scart connector. There was some info on the net regarding …

    ... explained how he fixed the 12v problem:

    [url]http ... %3D0+%22retro+repair+shack%22+12v+womble&hl=en& ...
    zxbruno zxbruno December 2008 Hardware
  • Ma20 Rgb InterfaceHello everyone , im a bit stumped on this one :) . Im wanting to convert the RGB lead to a scart connector. There was some info on the net regarding …

    ... explained how he fixed the 12v problem:

    [url]http ... %3D0+%22retro+repair+shack%22+12v+womble&hl=en& ...
    flumpey flumpey December 2008 Hardware
  • 4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?

    ... generate it, could go. The +12V was still used, but only ...
    RetroTechie RetroTechie December 2008 Hardware
  • 128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …

    ... , and the input supply is 12V, you're still taking 1A ... on the 12V side. The power turned to ... 1A at 5V, on the 12V input side, they tend to ...
    Winston Winston January 2009 Hardware
  • 128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …

    ... , and the input supply is 12V, you're still taking 1A ... on the 12V side. The power turned to ... 1A at 5V, on the 12V input side, they tend to ...
    BloodBaz BloodBaz January 2009 Hardware
  • R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…

    ... Spectrum also generated -5V and +12V ( or something like that ). These ...
    bladerunner bladerunner February 2009 Hardware
  • R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…

    ... Spectrum also generated -5V and +12V ( or something like that ). These ...
    DEATH DEATH February 2009 Hardware
  • causes of spectrum buzzing when starting?Hello Do you know if might be a problem that a buzzing sounds sometimes when a spectrum is starting on? thanks

    ... supply that generates -5v, +12v and -12v). There's nothing you can ...
    Winston Winston February 2009 Sinclair Miscellaneous
  • Component count/modern replacementsThere is a thread/project for replacing the old memory with simms There is also the ULA replacement. There's DEATH's composite replacement. What els…

    ... will simplify the need for -12v and +12v rails (and hence simplify ...
    BloodBaz BloodBaz February 2009 Hardware
  • Scary electric businessThe tranformer that supplies 12V to my monitor has started to leak. I suppose it's the capacitor inside. Should I hunt down a different one? Is it sa…

    ... ;336997]The tranformer that supplies 12V to my monitor has started ...
    mile mile February 2009 Chit chat
  • Scary electric businessThe tranformer that supplies 12V to my monitor has started to leak. I suppose it's the capacitor inside. Should I hunt down a different one? Is it sa…

    ... ;336997]The tranformer that supplies 12V to my monitor has started ...
    Scottie_uk Scottie_uk February 2009 Chit chat
  • Scary electric businessThe tranformer that supplies 12V to my monitor has started to leak. I suppose it's the capacitor inside. Should I hunt down a different one? Is it sa…

    ... ;336997]The tranformer that supplies 12V to my monitor has started ...
    Winston Winston February 2009 Chit chat
  • Component count/modern replacementsThere is a thread/project for replacing the old memory with simms There is also the ULA replacement. There's DEATH's composite replacement. What els…

    ... the components! Must be the 12v.
    I would say you ...
    BloodBaz BloodBaz February 2009 Hardware
  • Component count/modern replacementsThere is a thread/project for replacing the old memory with simms There is also the ULA replacement. There's DEATH's composite replacement. What els…

    5v, 12v there's only 7v difference :)

    When components are removed or replaced is there any supporting circuitry that can then also go?
    dekh dekh February 2009 Hardware
  • Component count/modern replacementsThere is a thread/project for replacing the old memory with simms There is also the ULA replacement. There's DEATH's composite replacement. What els…

    The LM1889 uses 12V (minimal 9). Also the Spectrum ...
    roko roko February 2009 Hardware
  • Scary electric businessThe tranformer that supplies 12V to my monitor has started to leak. I suppose it's the capacitor inside. Should I hunt down a different one? Is it sa…

    ... ;336997]The tranformer that supplies 12V to my monitor has started ...
    mel the bell mel the bell February 2009 Chit chat
  • sinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …

    ... ...heheheh :lol: of cutting the 12v lines to the ram chips ...
    PauloAlb PauloAlb March 2009 Hardware
  • sinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …

    Well, i isolated the 12v line for every chip, by ...
    PauloAlb PauloAlb March 2009 Hardware
  • issue 2 board c34 getting hotHi All, Can anyone help with c34 getting hot very quickly? I`ve got an issue 2 board, there is no `buzz` from coil. yet the spectrum initalises to co…

    ... `ve got +5,-5 and 12v at the 4116 ic`s ...
    adekav adekav March 2009 Hardware
  • Advice on cooling a PC needed.I am about to build what is gonna be my final PC but i want it to be a humdinger and need advice on keeping it cool as in the past i have built prett…

    ... 26cm long and requires 2 12v power connectors). My PC is ...
    The Starglider The Starglider March 2009 Chit chat
  • Using a Spectrum in JapanHi all, at the moment I have a 48k Spectrum on its way (with a LOT of other stuff) to Japan where I intend to use it. So I have some fairly straight…

    ... is a variable PSU (3v-12v that has a 2amp output ... -LINEAR-DC-POWER-SUPPLY-3-12V-2a_W0QQitemZ350184037220QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item350184037220&_trksid ...
    beanz beanz April 2009 Hardware
  • Issue 3B problemHi! I have an issue 3B board that is having a strange problem: when I got it it didn't had the -5V and +12v, as usual. After replacing TR4 and TR5 t…

    ... -5V came back, but the 12V are actually 11.10V... :-?
    That's good enough as 12V supply :)

    [QUOTE]
    RetroTechie RetroTechie April 2009 Hardware
  • Issue 3B problemHi! I have an issue 3B board that is having a strange problem: when I got it it didn't had the -5V and +12v, as usual. After replacing TR4 and TR5 t…

    ... with that voltage in the 12V line.

    After finding ...
    Hernán Pablo Álvarez Hernán Pablo Álvarez April 2009 Hardware
<1…15161718192021…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
12v 1.9K 3.2K
ripple 184 257

Related Threads

  • +12v/-12v/9v and peripherals?Do any peripherals use the +12v, -12v or 9v lines exposed at the edge connector?<br /> <br /> Firstly, if they use +9v they won't work on a +3, since…
  • 12V ripple with lower ram installedI repaired a speccy this week. Before doing anything I replaced all caps and measured the transistors in the power section. When doing this I found t…
  • 12V -> 9VI found this simple dc-dc converter:<br /> [url]http://www.mcrent.com/workbench/dcdc1216/[/url]<br /> it converts 12V to 16V, can it be used to produ…
  • Spectrum +2 grey 12v railHello everyone,<br /> <br /> I have this grey +2 with no video from tv. After much reading and testing i realized it was the internal power supply. A…
  • 12v in a Spectrum +2My Speccy 128 +2 requires a 9v 2.1a PSU, all my 9v PSU's are much below 2.1 amps :(<br /> <br /> I do however have a 12v 2amp PSU, if I reverse the p…
  • 12V Rail - Spectrum 48kOkay - I may just be having a senior moment here, but I'm running out of ideas.<br /> <br /> I'm working on a Spectrum Issue 4S board,and have had …
  • ZX Spectrum Issue 2 - 12V badHey there,<br /> I'm currently attempting to fix a ZX Spectrum issue 2 that I recieved. <br /> Overall the machine was generally working when I rec…
  • 12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…
  • zx spectrum +2A power supply missing -12v voltshey.. i'm looing at a zx spectrum +2A power supply that the -12v rail seems to be missing .. it has the 12 volts and 5 volts .. it is the version wit…

Related Searches

  • datacorder 12v
  • toastrack 12v tr
  • toastrack 12v tr4
  • missing 12v
  • 12v
  • low resistance 12v
  • 12v coil
  • harlequin 12v
  • toastrack 12v
  • 12v 22v
  • 12v high
  • 12v problem
  • system 3 ripple
  • decoupling 12v
  • 12v noise
  • 12v ac
  • 12v ma
  • 12v mv
  • ripple
  • 12v power supply

Copyright © 2024 World of Spectrum