Putting KT66 Tubes in my Marshall Studio Vintage!



Published
In this video I compare the stock EL34 power tubes of my Marshall SV20H to KT66 Power tubes (1950s GEC KT66). I'm playing both setups through a 1971 Marshall 1960B 4x12 with G12M25 75Hz Pulsonic Greenbacks using a 2008 Gibson Les Paul R9.
Category
Audio
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