Found in 1969 documentation, this circuit supplies a load after an interval given by R1 and C1. These components can be changed to other times.
This circuit mimics the dialing of an old telephone. The reproduction is made in a loudspeaker and the power...
The gain of this circuit depends on the frequency of the input signal. The circuit is from a Radio...
This tone control was obtained in a Signetics documentation of the 90s. The integrated circuit can be...