Tube Talk - Pentode vs. Beam Tetrode and how they work
31:27
Tube Talk Part 2 - Are Vacuum Tubes Radioactive?
10:32
ECE4448 L45: Introducing Pentodes and Beam Tetrodes (Guitar Amplification and Effects, Georgia Tech)
26:38
Phase Inverters....for the Common Man
23:31
Vacuum Tubes: Episode 5 – The Pentode
1:08:00
Construction d’un amplificateur à tubes DiY single ended Classe A à partir de récupération
59:39
Intro to Vacuum Tube (Valve) Testers
50:58
Damping Factor: What is it & is it Important?
20:53