Here's a circuit to create a buzzcoil using a standard automotive ignition coil. A 556 dual timer is used to establish the frequency and duty cycle of the coil current. One of the timers is... [more]
The CDI ignition circuit produces a spark from an ignition coil by discharging a capacitor across the primary of the coil. A 2uF capacitor is charged to about 340 volts and the discharge is controlled... [more]
Can be used agains ferocious animals or attackers, BUT REMEMBER, this device may be illegal in your state. [more]
Here’s a project that could be useful this summer on the beach, to stop anyone touching your things left on your beach towel while you’ve gone swimming; you might equally well use it at the... [more]
circuit from:http://www.extremecircuits.net/2010/05/mini-high-voltage-generator.html
This is an efficient flyback driver for modern cylindrical rectified television flybacks. [more]