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However a closer inspection tells us that of course the wiring is symmetrical, having the transistors T11, T13, T15 at the upper section acting like special booster transistor package.Similarly the lower section also employs identical super booster stage consisting of the transistors T12, T14 and T16.
![2n3055 transistor test 2n3055 transistor test](https://www.coilgun.info/levitation/images/2N3055pinout.gif)
The input stage of the circuit begins or initiates with a symmetrical differential preamplifier stage consisting of the transistors T1, T2 and T3, T4.T5 and T6 are positioned as the current sources which are further extended as the driver stage consisting of the transistors T7 and T8.
#2n3055 transistor test how to
The circuit efficiently drives a 100 watt 4 Ohms speaker with inputs derived from any audio source like a cell phone or DVD player etc.īefore you learn how to build this interesting and useful 100 watt amplifier circuit using 2N3055 transistors, a prior understanding of the involved circuit configuration would be very handy, let’s begin the explanation with the following points: Circuit OperationĪ quick glance at the given circuit diagram makes us conclude that the output configuration is not symmetrical, since the transistors T15 and T16 are both NPN types. Basically, the entire configuration is a symmetrical class A amplifier incorporating an input filter stage, an intermediate driver stage and a powerful symmetrical output stage consisting of the versatile 2N3055 power transistors.