5 Watt Class-A Audio Amplifier Circuit diagram


Posted on Feb 5, 2014

This solid-state push-pull single-ended Class A circuit is capable of providing a sound comparable to those valve amplifiers, delivering more output power (6. 9W measured across a 8 Ohm loudspeaker cabinet load), less THD, higher input sensitivity and better linearity. Voltage and current required for this circuit are 24V and 700mA respectively, co


5 Watt Class-A Audio Amplifier Circuit diagram
Click here to download the full size of the above Circuit.

mpared to 250V HT rail and 1A @ 6. 3V filament heating for valve-operated amplifiers. 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. Total current drawing of the circuit, best measured by inserting the probes of an Avo-meter across the positive output of the power supply and the positive rail input of the amplifier, must be 700mA. Adjust R8 to obtain this value if necessary.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    10 LEDs VU meter
    Amplifier Clipping Indicator
    RF wireless allarm magnetic switch PIC16F84
    Class A 2A3 audio Amplifier
    Dc lamp dimmer
    General-Purpose 5W Audio Amplifier With Ac Power Supply
    Arduino LED Dimmer
    Radiation Sensor Circuit
    three rails regulated power supply
    3V to 40 Volt DC Converter Circuit
    4017 based sequencer
    ecm mic preamplifier
    Motion Sensor For Security Light Using PIR BS1600 PCB
    TDA7541 AM/FM Car Radio Tuner IC With Stereo Decoder And Intelligent Selectivity System
    Output Assign Module
    Rear Light After Glow (For Bicycles)
    High Impedance Amplified Telephone Line Tap
    DC brush motor driver circuit diagram



    Top