Vacuum Tubes

Atm-Sphere M-60 Amp

What it Takes to Make a Tube Amp

2:52 pm
Atma-Sphere is world renown for fantastic their OTL amplifiers.  In this video they use stop-motion animation to provide us with a look into how the award-winning Atma-Sphere M-60 power tube amp is hand assembled.  If…

Vacuum Tubes: A Brief History

5:00 pm
Vacuum tubes, amplifier tubes, or thermionic valves, are the heart of guitar amplification. Even solid state amps are usually designed to emulate the sound of tube amps. But the vacuum tube was actually critical for…