Quote:
Originally Posted by VintagePC
I do see cheap RF modulators littered all over fleabay, and even B-Ts can be had for $40 or so including shipping - except the BTs aready require a 75 ohm coax signal in.
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S-Video is already 75 ohm impedance, and the luma channel will drive a 75 ohm load into a modulator just fine. All you'd need is an S-Video cable with an S-Video connector on one end, and a pair of RCA jacks on the other. One of those RCA jacks is the luma. You may also need an RCA to BNC adapter.
As for the standards, you'd want to be sure to get one intended for NTSC, so the sound subcarrier is on 4.5MHz, and not 5.5 or 6.5 for some PAL countries.