Building the Shuguang EL34-B Vacuum Tube - Part 1
1:50
Building the Shuguang EL34-B Vacuum Tube - Part 2, Sealing the Bottle
58:45
Building a 1920s Tube Amplifier (And Tubes!)
22:39
Making: Huge Nixie Tube prototype - Project H #18
26:12
【加工動画25】旋盤で六角穴/How to make a hexagonal hole with a lathe.
21:37
Building a DIY Triode Vacuum Tube
8:01
Evde PCB Üretimi: Kolay ve Hızlı Yöntem! 🛠️ | Si5351 Clock Generator
21:35
Tube Lab #25 Rolling the EL34 Power Tube with the Willsenton R8
19:33