This circuit was found in a Radio Electronics from February 1966. The circuit operates with a common battery and the frequency is given by the resonant LC circuit.
This circuit was found in a 1999 documentation, but it can still be easily assembled today, as the...
This circuit, found in a 1988 documentation consisting of an audio switch that turns off the load...
Launched in 2016 but with documentation reviewed in June 2017, the Texas Instruments TLV854x...