This low power circuit can be powered with voltages from 1.8 V. We find it in a 80s Hands On Electronics. The load can be from 8 to 32 ohm.
This circuit was found in a 1974 documentation. The bipolar transistor can be the BC548 and at the...
The circuit shown in the figure makes possible to control a servomotor from a remote oscillator using a...
This circuit was found in American documentation from the 90s. The coupler is the type that uses a...