20 watt stereo amplifier-simple and very cheap DIY Upgrading Portable Speaker Arduino DUE Guitar Pedal - Open Hardware. Mounting small loudspeakers Cool 20W speaker cheap and easy! Portable Bluetooth Speaker 2x3W Finished ! Roberts 747 - DIY Raspberry Pi internet radio/str...
By: RyanT9
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from Instructables: exploring - technology - robots http://ift.tt/1TMMt80
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