This circuit is from an 80's technical newsletter. The circuit can use any general purpose transistor and its power supply can be changed with a resistive divider to use a single 9V battery.
This circuit is from 2002 documentation, requiring a symmetrical source of 6 to 12 V. The signal...
This circuit from a 1989 documentation is more suitable for CMOS circuits since it only works with...
This is a traditional audio amplifier configuration with complementary Darlington transistors. The power...