This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output power is low and the critical components are the transformers. The circuit was found in an 1958’s publication.
This is a typical common emitter amplifier stage configuration. The transistor can be used...
This circuit trips when the input voltage exceeds 30 V. Its base is a DIAC and it can be used to...
This circuit produces 1 kHz square signals using the CMOS IC 4070. The frequency is given by the...