Vacuum Tubes Pre-Amplifier PCB | How Vacuum Tubes Work?
13:16
Vacuum Tubes POWER Audio Amplifier - How it sounds?
27:07
How A Tube Works
19:57
Let’s Build a Low Voltage Vacuum Tube Audio Amplifier
18:49
I've Made a Powerful COILGUN | Separate Stages PCB
12:35
This IC is Multifunctional - TL431 Circuits
11:29
The Best way to Solder? Hot Plate to the rescue! (DIY or Buy)
15:28
Capacitor Experiments - How They Work?
16:11