Circuit diagram of the 5-watt mono audio amplifier is shown in Fig. 1. Apart from audio amplifier TA7222 (IC1) and a 4-ohm speaker (LS1), this 5-watt AF amplifier uses a few resistors and capacitors, a potmeter and two connectors. Fig. 1: Circuit diagram of 5-watt audio amplifier using IC TA7222. IC TA7222 (IC1) is the heart of the circuit.. The input sensitivity of this 5 watt amplifier is approximately 400 mV when a 12 -volt supply input and a 4 Ohm speaker is used load, and it is 600 mV when the supply is 17 V and the speaker resistance is 8 Ohms.. Power Supply Circuit. The following diagram demonstrates the regulated power supply circuit for the compact stereo amplifier circuit.
The only penalty for the transistor operated circuit is the necessity of using a rather large Heatsink for Q2 and Q3 (compared to the maximum power delivered).In any case, the amount of heat generated by this circuit can be comparable to that of a one-valve amplifier. An optional bass-boost facility can be added, by means of R5 and C5.. Here is the circuit diagram of the classic 5W Tube Amplifier with EL84 as the final amplification component. This is a single channel amplifier (mono) of course with single input and single output.. Pola on 20 Watt Stereo Audio Amplifier using TDA2005; Shujaet on Low Cost Electronic Rat Repellent; Shahzad on Bass Guitar Preamp Pedal;