This circuit with germanium transistors is from 1960 and was found in Mullard's transistor application manual from 1960. The circuit can be adapted to use more modern transistors.
With an output power of 1.5 W under a 12 V supply, this circuit makes use of transistors that are...
I got this circuit from Hands-On Electronics, 1988. The American magazine no longer exists, but...
This circuit is from the Motorola Linear Databook of 1990. The values of the components depend on the...