Interesting. This modulator I have that I bought over at the Radio Shack Clearance Center (...in FW off of Northside Drive and I-35W, used to go there every 2nd or 3rd Saturday don't remember exactly at 7 AM lined up and waiting...) back in 2000-2001 is an early possibility they probably cleared out, too expensive. I bought 3 of these discontinued items for $30 ea. No single chip wonder here like in their later model in Chris Cuff's video. Notice the separate DBX encoder chip to make it exactly right. VR2 I marked on the board back then, that's the video level. Was low out of the box.
