The supply of this circuit can be done with voltages from 8 to 28 V and the maximum output current is 3 A. The gain is 36 dB. The speaker impedance is 4 ohms.
This circuit was found in National Semiconductor documentation from the 90s. The circuit uses two...
We found this circuit in the March 1984 issue of Radio Electronics magazine. The module used is a...
This circuit was obtained in an old Elektor and can be adapted to use white power LEDs. The...