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 11:59 AM #54133
davemarcotte
Participant

    So why does the OSSC wiki say this, “A 470 ohm series resistor on the console side of the cable is generally a good solution when using cables which are wired for the TTL-level sync output of a console.” ? https://junkerhq.net/xrgb/index.php/OSSC

    If we’re trying to get 75ohm output? Is it because even though the cable reads 470 ohm between the source pin and the input side of the capacitor, if read with an oscilloscope it’s actually at 75 ohm because of the variable nature of video signals?

    I am getting the same red, noisy/blurry image as before still with them in line. Not sure why.