This circuit was found in an Electronics World of 1969. The circuit has a drain current of approximately 150 uA. The frequency generated is 1 MHz with the indicated components.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This simple optical alarm circuit was found in the 1991 Electronics Experimenter Handbook. The...
This simple 5.6 V regulator circuit was found in a 1966’s Philips. The zener can be changed to...