Light Vader This is a home made diy synthesizer built from two getlofi.com 555 timer kits. This two oscillator synth has a square wave output and a very weak triangle wave output, both waves are switchable. Osc 2 can be synced with osc 1 or ran independently. Both oscillators have a pitch control and a volume control. There is a setting which allows you to control the pitch through two photo resistors, with one of them being tilted to allow for variation.There are four outputs on this machine, two RCA and two 1/4", one of each is for osc 1 and 2. There is a 9 volt battery inside the enclosure, but is switchable to a 9 volt power adapter.
On the side is a semi lfo mode. I basically added an extra 500k resistance to lower the pitch. But at these low frequency the triangle wave can can be heard and the square wave will function as a controlled voltage on / off. Added sync, triangle square switch, volume, photo resister, RCA and 1/4"outputs, and some what of a lfo mode.
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