Using schematics found on archive.org, Mark Longstaff rebuilt an analog circuit found in Roland's TR-808 Rhythm Composer. Which circuit? Oh, you know the one.
Recreating the Roland TR-808's legendary analog cowbell
Altered from Croisy/shutterstock.com
The Flea-Scope is a $25 USB oscilloscope
An oscilloscope makes the invisible world of electricity visible, letting you observe electrical signals on a video display in real-time. For $25, the Flea-Scope plugs into any computer via USB,… READ THE REST
Finally, a USB rechargeable… bra?
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Guitar amps made with home-made vacuum tubes
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Enjoy 16 hours of battery life with this great everyday laptop, now under $200
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Secure cloud storage deal: 10TB of encrypted space for a one-time payment
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