This 40W Hi-Fi Amplifier described in details are capable to deliver truly 40W r. m. s. power. Silicon transistors have been used in all stages. Power transistors 2N 3055 or BD 182 has been used in the power output stage. The output power transistors should be Matched Pair and the output stage employs in a quasi-complimentary single…
The amplifier described here is placed for the learners / Beginners / Students. The 3-Watt Output power of this amplifier is sufficient for a standard or average sized room. The amplifier circuit described below uses six (06) silicon transistors. Since all these transistor stages are directly coupled it ensures excellent low frequency response. The use of silicon transistors provides greater stability to the amplifier and improves the high frequency response also.