Audio Frequency Amplifier 20W based LM1875

Audio frequency amplifier 20 WThis scheme requires a minimum number of components. The amplifier has a good performance and very low harmonic distortion. At the main component of the amplifier is chip LM1875 company National Semiconductor , which has protected against short circuit and overheating.

Voltage : 48 V DC
Current Consumption : 1 A
Output Power : 20 W at 4 ohms
Gain : 26 dB
Band : 20 Hz … 20 kHz

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