Batteryless Door Alarm Bell(Multi Purpose Alarm Bell)
This is a simple Batteryless Door Alarm Bell. DC 3V motor : From CD ROM DC 110V Motor : From Massage machine Limit Switch : From Laser Printer Circuit board
0
Tag: Batteryless
Battery-less Electric Helicopters were Ground-Powered! Then and now.
*Please read. The SkyLark EH-1 was originally advertised as the first Electric R/C helicopter. They were imported beginning in 1978 by Condor Hobbies. Due to short flight times with the …
0
Batteryless Wireless Doorbell
A doorbell that can wirelessly transmit a signal 100M without a battery. Click SHOW MORE to see all purchasing links. Amazon UK Amazon US (2x Ringers) Amazon US (1xRinger) Banggood: …
0
Batteryless torch light from Old scanner components
You can make a batteryless torch from old scanner components. Stepping motor + 6 1N5819 Doide + LED
0
Hand Crank Taser (Batteryless handheld igniter)
This is a batteryless handheld igniter. The CDI(Capacitor discharge ignition) igniter from discarded Gas burner. You can use this batteryless taser for electric torture. More Info about CDI igniter :
0
How to make a Batteryless Clock (A Clock runing by USB Power)
This is a 1.5V voltage regulator. It can be drive clocks or toys. Multiple clocks can be driven by a single regulator.
0