How to build [and calculate] a variable capacitor
10:04
DIY Variable Capacitor using Aluminium Foil
14:50
HAM RADIO: Building a Variable Capacitor, DIY Capacitor, Magnetic Loop
11:38
We tried to make Nitric Acid by Ostwald Oxidation [Part 1]
10:10
5" high voltage butterfly capacitor kit for a magnetic loop antenna VA6POP
21:37
Building a DIY Triode Vacuum Tube
11:23
Understanding Tuning Capacitors: Antique Radio
28:27
HAM RADIO: Building a magnetic loop antenna Part 2...
8:28