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Search Again :: Adv Search 385 results in 0.000s
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  • Your latest retrogaming purchaseAs there is another thread about gaming purchases, It would be nice to know your latest retrogame adquired, preferably Spectrum, but of course other …

    ... signal generator and SC110A mini-oscilloscope (which needs some attention).
    RobeeeJay RobeeeJay September 2013 Games
  • 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 …

    ... 'd want to use an oscilloscope to examine the nature of ...
    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 …

    ... the video waveform with an oscilloscope would be very useful. Having ... an oscilloscope with some fancy trigger features ...
    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 …

    ... 't have access to an oscilloscope so will have to go ...
    actualreality actualreality 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 …

    ... previously with not having an oscilloscope, i have to clutch at ...
    actualreality actualreality 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 …

    ... that, you would need a oscilloscope and see what the computer ...
    mcleod_ideafix mcleod_ideafix September 2013 Hardware
  • The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…

    ... -Mini-Portable-ARM-DSO203-Digital-Oscilloscope-Quad-4-CHANNEL-ADC-FPGA ...
    balford balford October 2013 Hardware
  • 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…

    ... , I didn't have an oscilloscope to see what the hell ...
    skagon skagon October 2013 Hardware
  • ZX Spectrum 48k - no CLK signalHello I'm trying to repair ZX Spectrum 48 mainboard issue 3B. When i check signal with oscilloscope on X1 or on ULA pin 39. I get stable 2V no clock…

    I'm using 1/10 oscilloscope probe.
    X1 is ok. ...
    gottrek gottrek November 2013 Hardware
  • Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…

    ... got a friend with an oscilloscope to confirm that bit 0 ...
    David Jones David Jones December 2013 Development
  • grey +2 mystery continuesAfter fixing two grey +2 Issue 3 Spectrums, where replacing and turning TR4 solved the RGB signal problems, I came across two more problems with the …

    ... /> This is also where a oscilloscope is handy.

    [I ...
    1024MAK 1024MAK December 2013 Hardware
  • Why?I'm just wondering why people are here? Why are we working on or using old hardware? Why are some of you putting a lot of effort in upgrading the ha…

    ... and watching signals with an oscilloscope to see what's happening ...
    guesser guesser December 2013 Sinclair Miscellaneous
  • 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…

    ... you need access to an oscilloscope to go much further I ...
    guesser guesser December 2013 Hardware
  • 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…

    ... a board.[/QUOTE]

    Oscilloscope-style grabber probes are amazingly ...
    Winston Winston December 2013 Hardware
  • 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…

    ... that not many have an oscilloscope lying about, or are handy ...
    skagon skagon December 2013 Hardware
  • 128K RGB Display problem.I have just got my hand on a toast rack, but when powered and connected to the telly the picture jumps horizontally at random intervals. Could it be…

    ... who has some test gear (oscilloscope), they could test the PSU ...
    1024MAK 1024MAK December 2013 Hardware
  • Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…

    ... /> One other thing...using an oscilloscope as a logic probe. Would ... logic (memory perhaps?) using an oscilloscope.

    thanks again,
    thomas3120 thomas3120 December 2013 Hardware
  • Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…

    ... ]One other thing...using an oscilloscope as a logic probe. Would ... logic (memory perhaps?) using an oscilloscope.[/QUOTE]
    Measuring static logic ...
    1024MAK 1024MAK December 2013 Hardware
  • Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…

    ... /> (people more used to an oscilloscope might want to amend that ...
    pkersey pkersey December 2013 Hardware
  • Born again Speccy user with problemsHello all, Firstly I'd like to say a big hello - this is my first post! When I was 8 or 9 or so my dad bought a ZX Spectrum 48K and a whole bunch o…

    ... cassette player and with an oscilloscope monitoring the signal at the ...
    Zorn Zorn January 2014 Hardware
  • Born again Speccy user with problemsHello all, Firstly I'd like to say a big hello - this is my first post! When I was 8 or 9 or so my dad bought a ZX Spectrum 48K and a whole bunch o…

    ... cassette player and with an oscilloscope monitoring the signal at the ...
    Pierre Pierre January 2014 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…

    ... levels, you need a good oscilloscope (20MHz or better) or a ...
    1024MAK 1024MAK January 2014 Hardware
  • New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…

    ... had a look with an oscilloscope to see whether I could ... to minimise loading and an oscilloscope with 200MHz bandwidth. I couldn ...
    Zorn Zorn January 2014 Hardware
  • New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…

    ... observe anything useful on an oscilloscope (the waveform looks pretty much ...
    Winston Winston January 2014 Hardware
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... out that you want an oscilloscope too. In which case, pretty ...
    RobeeeJay RobeeeJay January 2014 Hardware
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... out that you want an oscilloscope too. In which case, pretty ...
    Winston Winston January 2014 Hardware
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... completely useless old Thandar mini oscilloscope that came with a pulse ...
    RobeeeJay RobeeeJay January 2014 Hardware
  • PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…

    ... much better to use an oscilloscope for measurement when working with ...
    Pierre Pierre March 2014 Hardware
  • PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…

    Im getting 11.5v under load btw, no oscilloscope to hand, just a standard multimeter
    Macc Macc March 2014 Hardware
  • PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…

    ... mains, if viewed on an oscilloscope will look similar to a ...
    1024MAK 1024MAK March 2014 Hardware
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