Mark III in for repair, basically just needing new power tubes. Also had 2 broken push pull pots and a broken fuse holder.
Used by such famous rockers as Today is the Day, Weezer, and NOFX, and more.
High tech amp. Has a simul-class power section which biases two EL34s in class A and four 6L6s tubes in class AB through the same output transformer. SO, at idle the EL34s when selected bias at about 70mA and drop to 30-40mA when cranked (class A), while the 6L6s idle around 30-40mA and rise to about 120-130mA when cranked (class AB).
Mesa Boogie Mark III preamp
Mesa Boogie Mark III power amp and power supply