This is the power step of the previous circuit. Output transistors must be mounted on good heat sinks. The circuit is from documentation from the 60s.
This voltage level-triggered circuit was found in a 1969 Ferranti English documentation. Modern...
Using 555 integrated circuits, this alarm circuit was found in a 90s American documentation. The signal...
Unlike the CIR4620 circuit, the circuit shown in the figure operates by capacitance. This means...