We found this circuit in a Radio Electronics magazine from April 1988; The output timing is given by R1 and C1.
April 2017 - Texas Instruments' new LDC2112 and LDC2114 inductive sensors can now be obtained from...
Found in an American publication from the 1980s, this circuit can be found in commercial sound...
This circuit was found in old English documentation. When the main power is interrupted, the...