I used a 50 Watt 4 ohm speaker embedded in a plastic encasement from Radioshack with two potentiometers and a power switch.
I put this together pretty quickly based off of the square wave oscillator schematic in the LM386 datasheet. Since I couldn't find a model for a 3-pin potentiometer in PSpice I figured the 5k pot was split that way but I could be wrong (also excluded the power switch). It's a whole lot of fun and gives you some pretty good control over a high bandwidth with lots of weird interesting things happening at certain combinations of the potentiometers. I'd recommend anyone put this together for like $20 from things at Radioshack. Also, I'm sure the circuit could be improved upon somehow or given some other cool features. Just thought I would share this project with you all.
http://extlabs.com/ishkabum/synth.mp3
http://extlabs.com/ishkabum/synth.JPG
I put this together pretty quickly based off of the square wave oscillator schematic in the LM386 datasheet. Since I couldn't find a model for a 3-pin potentiometer in PSpice I figured the 5k pot was split that way but I could be wrong (also excluded the power switch). It's a whole lot of fun and gives you some pretty good control over a high bandwidth with lots of weird interesting things happening at certain combinations of the potentiometers. I'd recommend anyone put this together for like $20 from things at Radioshack. Also, I'm sure the circuit could be improved upon somehow or given some other cool features. Just thought I would share this project with you all.
http://extlabs.com/ishkabum/synth.mp3
http://extlabs.com/ishkabum/synth.JPG
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