Build your own BC-611 high voltage battery (SCR536 WWII walkie talkie)
23:11
Simple NiMH battery charger (with PCB files)
20:46
Finally! A Battery That’s Better Than Energizer and Duracell!
13:24
Dangerous USB chargers 20
31:35
SCR300 (BC-1000) military WWII radio - history and actual on-air demonstration
6:20
Motorola's First Walkie Talkie... It was BAD
16:13
Duracell PowerCheck: A genius idea which didn't last that long
15:04
I tried finding Hidden Gems on AliExpress AGAIN! (Part 12)
11:33