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.
This circuit was found in ancient American documentation. It provides a 70 Vpp signal at...
This circuit appears in various parts of this site and this section, with diverse origins. This is from...
This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular...