Safe USB version of the Gillian's Diamonds lamp. (With PCB file.)
25:46
Using LEDs as mains indicator lights on 120V and 230V (live demos)
35:08
RGB LEDs, signs and answers to questions.
23:11
Simple NiMH battery charger (with PCB files)
10:30
Faça o seu próprio AR-CONDICIONADO em casa de forma rápida e fácil!
26:58
Simplest solar light possible, using old phone battery.
1:18:09
420cc Hemi Rebuild
22:03
PK-A22F high voltage module teardown with schematic
13:56