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.

rgs9208-25-2011 2:05am

3 responses Add your response

hifihvn Details Discussions Posts This discussion 943 posts 08-25-2011 9:21am Edit Delete [http://www.youtube.com/watch?v=S6IeuC8DSvg]Above link
jea48 Details Discussions Posts This discussion 2,696 posts 08-25-2011 2:10pm Edit Delete Would like to add this one as well. Electrons on Parade part 1. Electrons on Parade part 2. .
elevick Details Discussions Posts This discussion 2,366 posts 08-25-2011 4:11pm Edit Delete Google: Joes tube lore Also, on Anthem/sonic frontiers site search for "a taste of tubes