If you have a car, watch the desulphator kit and its construction.
18:18
If you don't have it, you'll get an shock.
15:23
Bu saat tamamen pilsiz. Direkt 220 AC.
27:27
دوائر التغذية boost converter
12:47
Making 20 kHz pulsed desulfator.&2
1:06:43
Short Wave Radio: assemblage d'un récepteur SW partie 2 de 3
8:24
Can alkaline batteries be charged? 1.2 volt battery charger construction and circuit.
8:03
How to make a 20 kHz pulsed desulfator device &1.
12:03