Dodgy mains emergency light. Full build and schematic.
29:03
Fixing a faulty USB power supply.
49:42
Gillian's Diamonds LED crystal remix. Full build.
29:33
500V to 12V 3A power supply (with schematic)
25:46
Using LEDs as mains indicator lights on 120V and 230V (live demos)
42:00
Chizhevsky ion generator PSU full build
1:14:50
Electronic Circuitry Diagnosis And Fault Finding! [Repair]
27:55
Eu construí uma bicicleta com rodas esféricas omnidirecional
16:32