The integrated circuit used in this amplifier is not very common today. This amplifier was found in the 1977 National Semiconductor Audio Handbook. The power source must be at least 500 mA.
This circuit is from a 1965 Argentine publication (Radio Chassis Television). The original...
This AC amplifier using the 741 operational amplifier uses a dual supply from 5 to 12 V. The input...
We found this circuit in the May 1989 Radio Electronics magazine. The circuit can have its values...