tube amplifier tone stacks: part 1 Published 10 years ago • 188K plays • Length 23:58 Download video MP4 Download video MP3 Similar videos 28:50 tube amplifier tone stacks: part 2 18:57 how tube amplifiers work, part 1: the power supply 1:16:33 the effect of output tube bias on tone, gain, and headroom.....a side-by-side comparison 5:44 two types of tube amplifier hum and how to determine the source 34:24 ts1 tone stack concepts