The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. The maximum power is 7 W with a 8 ohms load and the power can be between 9 and 14 V.
This circuit, from the 90's, is intended for operation with vinyl record players of the time, as...
Using a zener diode it is possible to change the linearity of the scale of an analog instrument by...
Found in American documentation from the 1980s, this circuit prolongs the ringing of a doorbell or chime...