3 Pieces of Feedback

Analog Red And Green Static Waves
Made with a combination of video mixers: Panasonic WJ-AVE3, Panasonic WJ-AVE5, Sansui VX-99, and Edirol V4.

iPhone Feedback
Made with a combination of video mixers (Panasonic WJ-AVE3 and Edirol V4) and an iPhone 3GS with another camera shooting the screen of the iPhone. The iPhone added delay and some picture quality changes.

Analog Red And Green Feedback Lines
Made with a combination of video mixers: Panasonic WJ-AVE3, Panasonic WJ-AVE5, Sansui VX-99, and Edirol V4.