Technology
Super simple vactrol construction

By Phillip Torrone

Phillip Torrone

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

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(LED + LDR)Tape = Vactrol. A Vactrol is an optoisolator device used for channel switching amplifiers… Try one with a 555 blinker circuit in place of a potentiometer for instant vibrato… Link.

Related:
Basic-Circuit
Blinking eyes circuit for halloween gadgets – Link.

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By Phillip Torrone

Phillip Torrone

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone