View Preamplifier Circuit Using Bc547 PNG. Similar to all the other transistors bc547 has also three terminals e.g. Neither does it convey any license under its patent.

Simple Audio Preamplifiers from www.circuitlib.com

In my design, the supply voltage is 12v. Collector terminal, base terminal and emitter terminal respectively. The preamplifier circuit is a circuit that extends the signal from the source sound to signal the use the preamplifier circuit expanded signal strength to strength in the area mv to access the power amplifier for amplifier efficiency.

Similar to all the other transistors bc547 has also three terminals e.g.

Preamplifier circuit is used to meet one or more of the following requirements: 931 x 949 png 65 кб. The on/off touch switch using transistor bc547 is shown below. Bc547 is the one which will be suitable even up to 50 v, the attached subscript is not critical.