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  1. B

    Mark V 90 EQ Mod?

    Hello, What would it take to change the values of the frequencies on the Mark Graphic eq?. Is it as simple as swapping out the inductors to other values? Specifically, I'd like to raise the value of the 6600hz and lower the value of the 80hz to about 8khz and 65hz, respectively. Alternately...
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    Mark V:35 Reverb Not Working / Schematic Wanted

    Hey all, I'll keep it kinda short and simple. New owner of a used'ish Mark V:35 head. The reverb does not work. Originally received the amp with broken springs, so I replaced the can with an Accutronics BL3AB3C1B. -Tap on the springs and sound comes out. So it's wired correctly and the...
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