This circuit was obtained from the 1995 Encyclopedia of Electronic Circuits Volume 5. The circuit uses a CMOS 4001 and has a transistor power stage.
This circuit is from a PE Hobbyst Handbook from 1991. The integrated circuit is a common 555 and...
Found in a 1968 Ferranti documentation, this circuit can be implemented with modern equivalent...
Unlike the CIR4620 circuit, the circuit shown in the figure operates by capacitance. This means...