We found this circuit with transistors in a Philips documentation from 1968. The double transistor can be replaced by discrete married types. The power supply is symmetrical.
We found this circuit in an American 80's documentation. The circuit can be adapted to function as a...
Found in a 1964 Electronic Design, this circuit makes use of FETs of the time. These transistors can...
We found this circuit at Modern Electronics in January 1991. The magazine no longer exists, but...