A model of the Roland RE-201 Space Echo as an FFGL effect for Resolume: a loop of tape, three playback heads bolted on at equal intervals, a twelve-position Mode Selector and a three-spring tank, with your picture as the signal on the tape.
This demo runs the plugin's shaders and a port of its CPU half in your browser, so it needs JavaScript and WebGL2. The plugin itself, its source and its downloads are on its repository.