This is small high volts shock circuit, pressure from the low current. It is perfect for fun play. In circuit has a few component just two small NPN transistors, 2 resistors and a transformer. So easy to builds and cheap! Do not wait..lets build it.
This is Efficient flyback driver circuit, using IC-555 and Mosfet-IRF510. This circuit uses a 555 timer IC to pulse a 2N2222 with square wave at a frequency that is set by the capacitor and the potentiometers.