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ECL80 PUSH PULL VALVE AMPLFIER
How To Convert AC To DC
ALESIS MultiMix 8 USB FX - how to make it to the power supply
DIY Single Ended Vacuum Tube Amplifier
Some of my plasma speakers
Turn Nearly Anything into a Speaker
iPhone Frequency Generator with Power Supply
Mr. E.Z. Tube Development Board
Posted:Aug 19, 2010
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