Using a Motorola MC1684 integrated circuit this 1968 amplifier provides 1 W to a 8 ohm load. The response ranges from 20 to 20 000 Hz and the distortion is only 1% at 1 kHz.
Found in Linear Technology documentation from the 90s, this circuit uses components from that...
In the figure we have the way to implement an operational amplifier using common transistors such...
When a voice signal enters this circuit, the volume of the music being played automatically...