9:51

6J1 INFERNO Guitar Amp *circuit edit*

10:42

Inside PJ. MIAOLAI SA-1000 tube preamplifier.

30:33

Cool Cats--The Evolution *From Rockabilly to Rock & Roll*

5:21

The Worst Filter Capacitors I Have Ever Seen.....and Heard :)

18:15

A Ciência da Planicidade

10:10

The Ultimate Low Cost Tube Combo Amp

16:11

Let's design an build a vacuum tube amplifier from scratch

13:24

Hammond M-111 Conversion of AO-29 Tube Amp, Part 5: Teardown Cont'd