This small amplifier with the fraction-watt LM4862 was found in the November 1999 issue of Electronics Now. The power supply is low voltage.
This configuration has already been used several times in many of our projects and can be found in...
This circuit is from Popular Electronics from October 1981. The diode can also be 1N4004 and the...
This circuit was found in a Radio Electronics Constructor, English magazine of April 1976; The...