" UNDERSTANDING ELECTRONICS: VACUUM TUBES " 1970 EDUCATIONAL FILM DIODES & TRIODES XD72594
21:32
AT&T Archives: A Modern Aladdin's Lamp, about vacuum tubes,1940
25:27
Vacuum Tubes/Valves by Mullard ~Manufacture for Audio TV Radio
20:52
Guitar Amp Vacuum Tubes Part 1: Triodes and Tetrodes
22:00
“TOOL AND DIE MAKING” 1953 NATIONAL TOOL AND DIE MANUFACTURERS ASSOCIATION PROMO FILM XD10964
18:33
How Cathode Ray Tubes Work.
19:50
8 awesome application of diodes in circuits.
16:11
Let's design an build a vacuum tube amplifier from scratch
13:27