This circuit, found in a 1958 magazine, is for reference only, since the components are not easy to find today. The transistors are germanium types and power supply is made by common cells.
Up to some minutes intervals can be obtained from this circuit. The circuit can use a lamp (or...
This circuit is from the 1993 Linear Technology Applications. The circuit has a 5 A output. The...
This circuit was found in a 1980s telecommunications publication. The circuit uses a diode bridge to...