Found in an American documentation from 1969, this circuit makes use of a pair of matched transistors of the time. The circuit supports modern equivalent components.
This common configuration is one of many that can be found in this section using the 555. The...
The load on this amplifier is 8-ohm. We found the circuit in a 1972 Motorola amplifier manual. The...
This circuit is from an old Motorola manual (1999) using an integrated circuit that is not very...