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Are AMPLIFIERS a LIE?! Guitar Direct into Speaker | Too Afraid To Ask
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VALVE/TUBE Amp Circuits EXPLAINED! | Too Afraid To Ask
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What are Valve Rectifiers? | Too Afraid To Ask
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How to make your AMP'S TUBES last LONGER! Dr. Z AMA!
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How To Test Bad Tubes With A Stick
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Presence: What Does It Do? | Too Afraid To Ask
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Simple tests for Tubes with a Multi Meter
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