Circuit diagrams and schematics - Electronic projects

care must be taken to ensure that R5 and RV2 are adequately rated. The current through these components is slightly greater than the sum of the output transistor base currents. The output transistor base current is the output transistor quiescent collector current (Ic) divided by the current gain (Hfe) of the device. The current through [...]

This is simple Power Amplifier Class A circuit. I used main part electronic is transistor only. The main power transistor i used TIP41 or TIP31 or C1061 or MJE3055 and next part is TIP42 (PNP) or TIP32 or A761. It is have power output 20W at 8ohm. and used volte of supply 22V to 28V [...]