Tag Archives: LDR

new devices

Built 2 new optical theremin devices this weekend, one with an LFO modulating the oscillator voltage. Here’s a quick video to demonstrate: One of these devices was built to order for a DJ who plays a lot of gigs in a lot of different environments, and from my own experience using these light-controlled instruments in [...]

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THE DESTROYER

I’ve been learning how to draw schematics for the devices I make, and I’ll be publishing them here as I go. Regular reader Jarrod requested I start with “THE DESTROYER” as featured in this post (and named by AceMcWicked), so here ’tis: click for full size (ps I’m a total noob at drawing schematics so [...]

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sound –>> light –>> sound

Light Dependent Resistors (LDRs) are really, really cool. Wikipedia has a proper explanation of how they work, but the short version is that the amount of resistance changes depending on how much light hits the face: more light = less resistance i.e. more current can pass through. Over the weekend I finished off this little [...]

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…and a fancy new theremin

(Actually I built this a few months ago but I’ve just recently made some modifications which kinda make it new again.) As soon as I saw Moldover’s fancy CD case instrument I knew I had to make one. But not in a CD case – it had to be bigger, stronger, and more like a [...]

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