Demodulator/tuner fit for OSSC. PAL + NTSC, component out

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  • September 26, 2017 at 2:20 PM #15438
    YoWalk
    Participant

      Hi,
      Long time lurker here’ I’ve enjoyed reading your forums while waiting for my 1.6 preorder to ship. I finally received my OSSC last week and I’m trying it out now. I hope I’m posting this in the right forum.

      I’m looking for a TV tuner/demodulator that is a good fit for OSSC. I’m planning to use it for older consoles without a component out and I like to keep things original, so I don’t want to mod them for better output.
      I’ll be using it for: ZX Spectrum, ZX81, C64 etc.

      I have machines from most sides of the oceans (US, Japan, Europe; PAL and NTSC, no SECAM yet) .

      Ideally I’d like a universal solution that outputs directly to component so that I can hook it directly to the OSSC without too many daisy chaining steps.

      I found one candidate on ebay: RF Coax Cable TV To VGA Video Audio Demodulator – TV Tuner For NTSC PAL

      However, this does not seem to be able to output the original resolution, but does internal upscaling. Owning the OSSC, that would be a complete waste.

      Any recommendations for this?

      Best regards,
      Thor

      September 26, 2017 at 4:59 PM #15441
      BuckoA51
      Keymaster

        You want to be going from the best available signal to RGB, not the worst. On the Spectrum, that should be RGB (certainly available on some models). On the C64, that’d be S-Video with a luma fix installed (can be installed without soldering so not a permanent mod).

        S-Video to RGB transcoders are difficult to find but do appear on eBay from time to time, the Extron ones are regarded as the best, with the Sony YR series also known to work.

        September 26, 2017 at 7:59 PM #15450
        YoWalk
        Participant

          Thanks, and I understand that.
          But as I said, I want a solution that does not entail modifying the console in any way. Even though I can add a better output to the Spectrum, if I want to use what is there, I’m stuck with something that can convert the RF output in a good way.

          September 26, 2017 at 8:15 PM #15452
          BuckoA51
          Keymaster

            You do not need to modify the Spectrum to get RGB output, at least not on later models.

            As for the C64, you can use the unmodded S-Video output but, the Lumafix only requires one chip to be lifted internally, so it’s not much more of a mod really than adding a cartridge to the back.

            I think it’s just the ZX81 that doesn’t even offer composite in its stock configuration.

            September 28, 2017 at 8:54 PM #15512
            YoWalk
            Participant

              Thanks,
              That’s interesting info. I’ll have to check which model my speccy is.
              I’m still looking for something to decode RF though. I just want a general fallback solution for any other device I might pick up that only has an RF output.

              September 29, 2017 at 9:47 AM #15531
              BuckoA51
              Keymaster

                This would indeed be useful for a few edge cases like ZX81 etc. If you find anything do let us know.

                October 2, 2017 at 8:16 PM #15616
                YoWalk
                Participant

                  Will do, but have come up short so far.

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