У вашего броузера проблема в совместимости с HTML5
JCA20H Jet City 333 modified with HSG (High Saturated Gain) mod, Starts Clean and moves to distortion. It also has a depth mod, triode / pentode switching and a skewed phase splitter. Very _sloppy_ one take demo of a modified amp. The guitar has a bleed mod on the volume control to control the amount of distortion. JJ Tesla EL84 fitted and stock ECC83. Google JCA20H HSG Mod to find full schematic on blogspot page.