200W audio amplifier PCB. Audio power amplifier components. IC1, IC2 = 2 IC’s TDA2030 T1, T3 = 2 transistors KT818 or BD708 T2, T4 = 2 transistors KT819 or BD705 C1, C2, C3, C4, C7 = 5 capacitors 150 ...

The collector circuit of a transistor amplifier can either be a very low resistance or a reactive circuit with a ... I made my first common base amplifier as a teenager messing around with audio.

The classic transistor amplifier circuit then has a pair of ... A 1 kΩ collector resistor and a 330 kΩ base resistor has never failed me for a small-signal self-biasing audio amplifier, ...