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valve amp
Tube amplifier-shaped USB speaker
Dec 31, 2009
Serkan Toto
<img src="http://www.crunchgear.com/wp-content/uploads/2009/12/usb_speaker-620x465.jpg" /> <a href="http://en.wikipedia.org/wiki/Valve_amplifier">Tube or valve amplifiers</a> are electronic amplifier