Found in old documentation, this oscillator operates with high voltage. The diode must be of the appropriate type with low current and an inverse voltage of at least 100 V.
We found this circuit at Modern Electronics in January 1991. The magazine no longer exists, but...
In this circuit, a jack with a diode activates a relay in a security system. The circuit is from a...
September 2016 - Supercapacitors of 10F to 100F in 3 V from Eaton can now be purchased from Mouser...