Video Feedback 2

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This is an early tape of analog video feedback experiments which I created in 1981. Magnavox TV, RCA camera, RCA VHS recorder, mirror. The first VHS recorder released in the USA was in 1977. The feedback is video self-oscillation with screen glare from room lamps or a flashlight as the excitation input. The mirror made possible many interesting symmetries. The system was very unstable and somewhat difficult to control.

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18 июн 2014

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Комментарии : 16

@sector7g 3 года назад

Nice! 40 years later analog video feedback is still alive!

@sc0o0tt Год назад

Crazy that you were doing this then, and its now my preferred medium! Thanks for sharing

@boggo3848 2 года назад

I can't even imagine what the first person to stumble across this effect thought about it in the moment.

@verfassungspatriot Год назад

"What the f...! That was probably too much acid last time..."

@scantronbeats 8 лет назад

Thanks so much for sharing this awesome historical footage!

@NullM0niker 7 лет назад

Awesome!

@Tavdog 4 года назад

time recreate this for HD 4K

@Banloca 4 года назад

love it. what would i need to buy to try this out?

@crabofchaos7881 3 года назад

A joovke doovde player and some doemtee

@morallita Год назад

Camera and crt

@thefourevas 6 лет назад

Great footage! Wondering where the mirror is positioned in the system? Thanks for posting!

@jankopiano577 5 лет назад

The mirror was laid nearly horizontally and nearly perpendicular to the screen, but these were adjusted slightly in the process. By rotating the camera relative to the screen and mirror, symmetry could be changed from 3 to 4 to 5 fold and everything between and beyond.

@synthmalicious7541 4 года назад

How’d you get the swirling at 24:24 ?

@jankopiano577 4 года назад

Just different settings of camera rotations relative to the monitor, zoom and color controls. These interact with the transfer functions of the camera sensor and the screen phosphors over which there is no control. There is a mirror at a near right angle to the screen which produces the tesselated patterns.

@synthmalicious7541 4 года назад

JankoPiano what camera were you using?

@jankopiano577 4 года назад

@@synthmalicious7541 an RCA. It looked like this: kitschnsyncprops.com/projects/images/IMG_0050.JPG