I need a simple circuit for a 2n3055 transistor

The first output of the counter is taken as output for this circuit which is at pin 2. The counter IC shifts its output for each positive edge applied to the clock input at pin 14. In the circuit, a decade counter IC 4017 is used to work as a latching switch for successive touch actions. It can generate an electrical charge from any change in physical parameters such as pressure, strain, force, acceleration, and temperature. In this touch switch, a piezoelectric sensor is used to sense the touch action. Supply вЂ“ 3V battery Piezo touch switch circuit using 4017 IC The circuit can be further modified for additional applications. The given circuit is a basic design to just operate a single LED with a 3V supply like a momentary switch. Thus the resultant output has extra sensitivity to the input signal. So the emitter current of Q2 which is the sum of the input signal (base current I b) and the amplified signal of Q2(collector current вЂ“ ОІI b) is again amplified by the Q1. In the circuit, the emitter of transistor Q2 is connected to the base of the transistor Q1.

The given touch switch circuit works with an arrangement of two NPN transistors similar to darlington pair, which can obtain a high current gain for the input base signal. Below are a few easy circuits to make a touch switch. It is used in hobby circuits to high-end consumer electronics for various applications. A touch switch is a device that operates with the touch action of an object or sensible material.

I need a simple circuit for a 2n3055 transistor