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Search Again :: Adv Search 1000 results in 0.024s
<1234567…34>
  • TR1 & TR2 replacement - now dark picture?Hi all I saw a list of diodes you could swap out for better modern equivalents. I saw TR1/2 could be replaced with BC547 which i had afew of (BC547 …

    ... swap out for better modern equivalents. I saw TR1/2 could ... ]ZTX313 can be replaced with BC547, BC548 and BC549 in TR1/TR2 ... position (Usually improves picture quality significantly)[/QUOTE ... swapped them out as my picture is terrible at the ...
    dreamscape dreamscape September 2014 Hardware
  • Guess the video faultI've two dead flesh Spectrums, one a 16K issue 2 outputting white with a tinge of blue (not as extreme as photo shows) with two pink horizontal lines…

    On the 4S, change TR2 with a ZTX313 for a better picture. May not be the fault, but worth doing nonetheless on any Issue 4S.
    Spirantho Spirantho January 2015 Hardware
  • Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…

    ... BC251, BC307, BC512, BC557
    ZTX313 can be replaced with BC172 ... TR5 Issue 2+
    ZTX313's in TR1/TR2 position can be replaced ... picture quality significantly

    MPS 2369 can be used in TR1 ... =odious;218176]ZTX 312 at TR1, TR2, TR3 and TR6 on an ...
    DEATH DEATH December 2006 Hardware
  • 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…

    ... used, but better transistors can sometimes give a better video picture (TR1, TR2).

    1024MAK 1024MAK October 2013 Hardware
  • tr1-2-3-4-5hi guys, can someone tell me, what is the exact function of each of the five transistors i have on my zx+3 i mean the black transistors TR1 TR2 TR3 T…

    hi guys,
    can someone tell me,
    what is the exact function of each of the five
    transistors i have on my zx+3
    i mean the black transistors TR1
    TR2 TR3 TR4 TR5,
    thanx,
    rigasrigas1980 rigasrigas1980 November 2007 Hardware
  • Fuzzy Screen On 48k Spectrum.Hi there. I bought a Spectrum off eBay last week (another for my collection lol), and it suffers with a fuzzy screen e.g. it looks like interference …

    ... , but although it's slightly better, it's still there. I ... . While probing middle legs of tr1 & tr2 on good unit, it ...
    Jimbob-Squarepants Jimbob-Squarepants January 2011 Hardware
  • +2A not showing a pictureThis video explains the problem: [url]http://www.youtube.com/watch?v=1lySPQu7RbI[/url] I can't tune a better picture with the RF and the RGB only g…

    ... /> I can't tune a better picture with the RF and the ...
    sf78 sf78 January 2012 Hardware
  • Better Picture QualityToday I built a PSU and RGB-SCART monitor cable for my +3. However, I'm not too happy with the picture quality. It appears that there's like halos a…

    ... not too happy with the picture quality. It appears that there ...
    MikeW MikeW June 2012 Hardware
  • Project #1 : Speccy 128k+2 with diVide inside...Hi guys, I just have finished my Super Spectrum #1 The idea (I was thinking of that since 2007) was to fit an english grey +2 motherboard in a +2A…

    ... ), a little psu, and a better compatibility for some games...
    better picture on video out by removing ... pin 4 and emitter or TR1 (to keep audio on RF ... TR7 (2N3904) the right way. Picture is now very good on ...
    bugpat bugpat April 2013 Hardware
  • Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…

    ... ceramic caps and also changed TR1/TR2 with BC547's, yet the ... there. Other than that the picture is great :)

    I ...
    retrogamemart retrogamemart September 2014 Hardware
  • Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…

    ... been updated again - info on TR1/TR2 ZTX313
    DEATH DEATH January 2007 Hardware
  • Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…

    ... tr1, tr2 is the 2N2369 which is the exact equivalent to the ZTX313 ...
    gtsamour gtsamour January 2007 Hardware
  • Interface 1 electrolytic capacitorsInterface 1 has three 47&#956;F electrolytic capacitors. Is it necesary to replace them with fresh ones? I always do this with old speccys but is it…

    ... times, changing the two transistors (tr1, tr2 i think, those two just ... TR1 and 2 can make a huge difference to the picture quality ... to the clarity of the picture again adds a bit of ...
    DEATH DEATH June 2007 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…

    ... capacitors and transistors and change TR1,TR2, C65 and C25. According to ... +components"]this thread[/URL] the ZTX313 could be replaced with BC172 ...
    Hernán Pablo Álvarez Hernán Pablo Álvarez April 2009 Hardware
  • Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…

    ... able to get a stable picture on it for the 14MHz ... resulted in a bit clearer picture on the scope, but my ... far I have not replaced TR1, TR2, TR8 and TR9 (but changed ...
    georgedb georgedb September 2009 Hardware
  • Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…

    ... (only very slightly though) better picture than the ZTX313's in situ.
    balford balford July 2013 Hardware
  • My first composite mod.Thought it was about time I gave the composite mod a go. I used a youtube video, the bloke in the video took 10 mins, I took about 2 hours :) but it…

    ... 't have ztx313's in TR1/TR2), then you can replace TR1/TR2 with BC549c ...
    balford balford January 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    Have TR1/TR2 been replaced? They're situated ... .

    If the original ZTX313's are present, you could ...
    balford balford September 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    [QUOTE=balford;790240]Have TR1/TR2 been replaced? They're situated ... .

    If the original ZTX313's are present, you could ... /> I have changed both TR1 and TR2 with a couple of 2N3904 ...
    Wiggs Wiggs September 2014 Hardware
  • Post Composite mod video not bright enough - FIXHiall, I have a few Spectrums and decided to modify them all with the composite video mod, i.e. redirect the feed to the modulator direct to the out…

    Incidentally, changing the 2N3904 on the Spectrum +2 for a BF199 could yeld a better image on CVBS?

    And what about the TR1, TR2 (,TR3) transistors? Any room for improvement?
    Renegade Renegade September 2014 Hardware
  • Spectrum +2 grey RF removalHi everyone. If I were to remove RF output from a +2, just intending to keep Composite video out from TEA2000, then all the components that make t…

    ... /> I removed the RF modulator, TR1, TR2, TR3, R1, R2, R3, R4 ... on the pcb which looked better for making the alterations and ...
    Renegade Renegade March 2017 Hardware
  • 16pf Capcitors for C72/C73 issue 3b. Can I use 18pf?Looking at the service manual it states to use a 16pf ceramic disc capacitor in positions C72 and C73 on issue 3b boards. Is this very critical in bo…

    ... sure ) ZTX313 can be replaced with alternatives ie TR1 & TR2 can be ...
    mark8bit mark8bit October 2021 Hardware
  • 16pf Capcitors for C72/C73 issue 3b. Can I use 18pf?Looking at the service manual it states to use a 16pf ceramic disc capacitor in positions C72 and C73 on issue 3b boards. Is this very critical in bo…

    ... MPS2369's are used for TR1/TR2, this may cause white flaring ... in stock.

    3. ZTX313(TR1/2/3/6) Transistors TO ... - As mentioned above. Both the ZTX313 and MPS2369 are obsolete transistors ... 16pF axial capacitors, and the ZTX313 transistors for me, but ...
    Your Spec-chum Your Spec-chum October 2021 Hardware
  • Is the Spectrum +2 notorious for having bad RF output? Are you Happy with yours?Hello, Are you happy with your Spectrum +2 using RF? Does it give satisfactory picture. Is the Spectrum +2 notorious for having bad RF output? If s…

    ... RF? Does it give satisfactory picture.

    Is the Spectrum ... /> If someone could post a picture of their TV screen with ... 48k I have is a better picture, and I know it's ... I have, also has a better picture.

    Do I have ...
    MontyMole79 MontyMole79 April 2005 Sinclair Miscellaneous
  • Software ClubI have bought some games on ebay.de, yes including bubbler :-) also are some cassettes from 'Software Club' somehow in conjuction with 16/48. Two are…

    ... will try and get a better picture uploaded plus more info on ... idea on them?

    picture here [url=http://www.britishbulldog ... -online.de/wos/192a_1.jpg]picture[/url]
    bbulldog bbulldog March 2007 Games
  • The long view of TV out qualityAs time went on, Sinclair improved the analogue side to give better picture quality. It's therefore ironic that out of the four Spectrums I currentl…

    ... the analogue side to give better picture quality.

    It's ...
    Winston Winston April 2007 Hardware
  • Xbox 360 t.v lead help neededMy brother, is lazy, and has been promising to send me a lead for my xbox 360, which will supposedly enhance the display, but I have given up waitin…

    ... called a "composite lead" for better picture quality?


    I ... .

    Is there a better lead for my telly, and ...
    thx1138 thx1138 July 2007 Chit chat
  • scanning boards with EPROMs?I have a number of expansion boards (for the ZX81) that have EPROMs on them. I'd like to scan the boards for preservation - you get a much better pi…

    ... preservation - you get a much better picture of the circuit layout from ...
    hldswrth hldswrth August 2007 Hardware
  • Sinclair Spectrum 48K with new membraneI am selling the 48K Spectrums I have on ebay in favour of Emulation. ;-) All have Composite mods and brand new membranes! Heres the first one...…

    ... unit for Composite video output (better picture qaulity) and no tuning of ...
    +2MAN +2MAN January 2008 Sales
<1234567…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

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ztx313 103 137
tr1 171 211
tr2 182 249
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Related Threads

  • TR1 & TR2 replacement - now dark picture?Hi all<br /> <br /> I saw a list of diodes you could swap out for better modern equivalents. I saw TR1/2 could be replaced with BC547 which i had afe…
  • Better Picture QualityToday I built a PSU and RGB-SCART monitor cable for my +3. However, I'm not too happy with the picture quality. It appears that there's like halos a…
  • TR1 and TR2 replacementCan anyone tell me the correct replacement part for these? This is for an Issue 4S btw
  • +2A: issue 1 no sound but better picture than issue 4?Hello everyone.<br /> <br /> I have a slight problem here and I am trying to figure out what could be wrong. :-(<br /> <br /> I have two spectrum +2A…
  • Better keyboard = better sales ?Just a random thought.<br /> <br /> I want to start this by saying although I did not have a + model new, I was never really a fan of this keyboard…
  • A picture of me and my Spectrum circa 1984 8o)[url]http://www.fotango.com/p/eba00132841f00000010.jpg[/url]<br /> <br /> From left to right;<br /> Stack of sinclair users in drawer<br /> Boots b&a…
  • Does Dan Dare II have a loading picture?And I don't mean the still of the spaceship that you see on some sites. That's the title screen. I've loaded it up from a TZX file on this site, and …
  • HELP me, racing game fans. I have drawn a picture!Hi. <br /> What's this racing game. '<br /> Can you see the picture????<br /> <br /> http://www.angelfire.com/music/badboysblue/zx.gif<br /> <br /> I…
  • TV picture goes kaput on my 128I've been using the 128K model a lot recently and noticed a bit of flicker on the screen. Then a couple of days ago it rapidly got worse, and now the…
  • Link to picture of the ZX Spectrum (LEGO) robot interface.You will have to copy/paste this url into your browser. Feel free to download it, or link to it.<br /> <br /> [url="http://www.myezboard.com/projects…

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