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Search Again :: Adv Search 236 results in 0.000s
<12345678>
  • 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 …

    ... better modern equivalents. I saw TR1/2 could be replaced with ... BC547, BC548 and BC549 in TR1/TR2 position (Usually improves picture quality ...
    dreamscape dreamscape September 2014 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
  • 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…

    ... 2+
    ZTX313's in TR1/TR2 position can be replaced with ... 2369 can be used in TR1, 2, 3 and 6 on ... =odious;218176]ZTX 312 at TR1, TR2, TR3 and TR6 on an ...
    DEATH DEATH December 2006 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 …

    ... . While probing middle legs of tr1 & tr2 on good unit, it ...
    Jimbob-Squarepants Jimbob-Squarepants January 2011 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 ...
    retrogamemart retrogamemart September 2014 Hardware
  • 48K Issue 6a wobbly and flickering TV outputHi folks, Found an untested issue 6A Spec whilst tidying up and it had a warranty sticker on it from a past repair which seemed to be a socketed L…

    ... usual I've checked voltages, TR1/TR2, the left-hand caps, swapped ...
    witchy witchy July 2016 Hardware
  • Repair ZX Spectrum +2 black issue 1Hi all, after a long time i will try to repair a ZX Spectrum +2 black i found the last days i know for sure that CPU is damaged (already repla…

    ... know transistors replacements for the TR1,TR2 and TR3? i have to ...
    xaris_sm xaris_sm June 2017 Hardware
  • ZX Spectrum Issue 2 - 12V badHey there, I'm currently attempting to fix a ZX Spectrum issue 2 that I recieved. Overall the machine was generally working when I recieved it, bu…

    ... and would crash occasionally, tuning TR1/TR2 didn't affect the color ...
    Shockwav3 Shockwav3 December 2017 Hardware
  • ZX Spectrum Issue 4S composite video fuzzy (horizontal blur)Dear people of WoS, Thank you very much for taking the time to read. I have an Issue 4S I recently acquired and planned to fix up as a gift for a…

    ... crack at component swapping:
    - TR1, TR2, TR4, TR8, TR9
    - IC ...
    handsfelloff handsfelloff January 2018 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…

    ... transistors i used to replace tr1, tr2 is the 2N2369 which is ...
    gtsamour gtsamour January 2007 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…

    Hi,

    I have a issue 3B that has:

    MPS 2369 in TR1, TR2, TR3 and TR6.

    By the looks of the solders, they weren't replaced. They were placed during factory production.

    Hope that helps.
    odious odious May 2007 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…

    ... :

    MPS 2369 in TR1, TR2, TR3 and TR6.

    DEATH DEATH May 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 ...
    gtsamour gtsamour June 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 ... minimal?

    Indeed, changing TR1 and 2 can make a ...
    DEATH DEATH June 2007 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…

    ZTX 312 at TR1, TR2, TR3 and TR6 on an issue 3B board.
    odious odious October 2007 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…

    ... /> i mean the black transistors TR1
    TR2 TR3 TR4 TR5,

    TR1+TR2+TR3 -> Composite Video Amp ...
    Gods Gods November 2007 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…

    ... Amp + audio mixer

    TR1+TR2+TR3 -> Composite Video Amp ... .
    (TR2 = same as one diode)[/QUOTE ...
    gtsamour gtsamour November 2007 Hardware
  • Classical music on the Speccy?While I was watching CVP409 videos on YT, I found a few movie scores and it made me start yet another topic about the AY chip. I know the beeper and…

    ... my studies).

    Tr1 & Tr2 1969, Hans Werman on a ...
    Scottie_uk Scottie_uk May 2008 Sinclair Miscellaneous
  • Classical music on the Speccy?While I was watching CVP409 videos on YT, I found a few movie scores and it made me start yet another topic about the AY chip. I know the beeper and…

    ... my studies).

    Tr1 & Tr2 1969, Hans Werman on a ...
    Mister Beep Mister Beep May 2008 Sinclair Miscellaneous
  • 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 ...
    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%…

    ... far I have not replaced TR1, TR2, TR8 and TR9 (but changed ...
    georgedb georgedb September 2009 Hardware
  • ZTX313 vs 2N2369 pinoutJust for info: [IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG]

    Great links, Mark! Cheers!
    Replacing TR1/TR2 on an Issue 2 sounds interesting. I just wonder whether the letter at the end makes a difference (BC548B/C resp. B549B/C)?
    schombi schombi June 2013 Hardware
  • ZTX313 vs 2N2369 pinoutJust for info: [IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG]

    ... links, Mark! Cheers!
    Replacing TR1/TR2 on an Issue 2 sounds ...
    1024MAK 1024MAK June 2013 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…

    ... and coil swapped out, and TR1/TR2/TR4/TR5 swapped for spares ... I tried in place of TR1/TR2 made text display quite blurred ...
    balford balford July 2013 Hardware
  • Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…

    ... or both of the original TR1/TR2 were faulty.
    Zorn Zorn September 2013 Hardware
  • spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …

    ... .

    Just checked the TR1 / TR2 voltages on the board, and ... /> 0 (TR1 0.587V) (TR2 2.313V)
    1 (TR1 0.587V) (TR2 2 ... .286V)
    2 (TR1 0.587V) (TR2 2 ... .260V)
    3 (TR1 0.587V) (TR2 2 ...
    actualreality actualreality September 2013 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…

    ... give a better video picture (TR1, TR2).

    Note *1 the ...
    1024MAK 1024MAK October 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…

    ... ztx313's in TR1/TR2), then you can replace TR1/TR2 with BC549c's ...
    balford balford January 2014 Hardware
  • AAAARRRRR DIV-MMC ENJOY againIve recently been posting trying to get to the bottom of problems with my +48 not working with this rechid addon.Now ive finaly worked out theres not…

    ... i think there are more TR1 TR2 for example and thank you ...
    zedexspectrum zedexspectrum July 2014 Hardware
<12345678>

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

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tr2 182 249

Related Threads

  • TR1 and TR2 replacementCan anyone tell me the correct replacement part for these? This is for an Issue 4S btw
  • 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…
  • tr1-2-3-4-5hi guys,<br /> can someone tell me,<br /> what is the exact function of each of the five<br /> transistors i have on my zx+3<br /> i mean the black t…
  • Strange device, TR1?Browsing through ebay I came across someone selling a [URL="http://cgi.ebay.co.uk/1982-ZX-spectrum-tape-machine-docking-station-games-/280599485408?p…

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