Reply To: What cap and resistor ratings do I use to mod my JP21/scart cable to get 75 ohm?

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July 16, 2022 at 10:51 AM #54132
davemarcotte
Participant

    Thanks Bucko. I tried again today and it is giving me video and audio output after all. So that’s good news.

    It does look overdriven. Noisy and slightly blurry and in the reddish tint.

    I think I’ll solder in a 470ohm resistor and a 220 10v cap and see what it looks like.

    Does it take an oscilloscope to see what the supergun is outputting through those two (cap and resistor) to tell if it’s optimal?
    If so, I guess I can begin budgeting for an o-scope.

    But what is an optimal voltage output? I know I’m shooting for 75 ohm output resistance, right? Anything else I need to track or consider here?

    Thanks so much.