This amplifier is from Motorola documentation from the 70s. The circuit uses transistors from the time, which are not common today, such as the SE7005 or 2N3916 at the output.
The circuit shown in the figure is suggested by Intersil (www.intersil.com) and makes use of the...
This resistance meter uses a two-transistor oscillator as basic configuration. The tone produced...
This well-crafted twin-T oscillator configuration for low frequencies using the 741 was found in...