10 to 14W Class A Audio Amplifier | Schematic Diagrams

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10 to 14W Class A Audio Amplifier


I have built this
amplifier and it does sound good. It requires a preamp as it hasn’t got
much gain. It requires big heat sinks and a large transformer and a
great power supply and careful wiring, but in the end it is extremely
simple and it sounds very good. The zener diode rejects any ripple
coming from the power supply, But you still only want a ripple of 10mV
max. The ripple reaching the input is amplified, so the zener diode gets
rid of that, but whatever ripple there is will still reach the power


Circuit diagram


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