Beep-it with Echo theremin and volume of the output

and volume of the output tone

The echo time is adjustable from zero to several seconds

The wooden case is built from hundred-year-old reclaimed wood

easily accessed through the back panel

fuzzy televisions

Beep-it with Echo theremin and volume of the outputAn optical theremin with built in echo. Cast shadows on it or wave around near a light source for science fiction y sounds and washes of tonal interactions. Use a blinky bicycle light or a flashlight for interesting effects. Demonstration video: Sound is activated by the silver button. Push it rhythmically for interrupted beeping textures. The echo time is adjustable from zero to several seconds. Runs on a 9v battery, easily accessed through the back