2. amps-preamps
  3. 1314237934

Interested in the history of the vacuum tube?

youtube.com/watch?v=S6IeuC8DSvg

The genesis of the vacuum tube is shown in this 11 minute film called Bottle of Magic.
They mention something called the 6AK7 used in the military, and what look like early 300Bs are shown.
rgs92
3 responses Add your response
hifihvn
943 posts
[http://www.youtube.com/watch?v=S6IeuC8DSvg]Above link
jea48
3,576 posts
Would like to add this one as well.

Electrons on Parade part 1.

Electrons on Parade part 2.
.
elevick
2,615 posts
Google: Joes tube lore
Also, on Anthem/sonic frontiers site search for "a taste of tubes
Log in to respond
More to discover
80x80
David Berning Co Quadrature Z
80x80
Ayon Audio Spheris III Tube Pre-amp
REFERENCE TUBE PREAMP
80x80
Dynaco ST-70......79 watt tube amp