MARSHALL JCM800 2203 - 6550 vs EL34 power amp tubes
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Marshall JCM800 2203 from 1984 aka THE BAD BOY
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ARE THESE NEW TUBES... ANY GOOD? TAD EL34 REDBASE
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THE BAD BOY IS BACK! My Marshall JCM800 2203 from 1984
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Tube Lab #26 Rolling 6550 & KT88 in Willsenton R8 Amp
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Revisiting The Marshall JCM900.
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How to Bias Marshall JCM800 Lead Series
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'82 Marshall 2203 | Part 3 : New Tubes - 6550 vs EL34
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