This transistorized circuit appeared in a Radio Electronics magazine in March 1958. The frequency range depends on the tuned circuit, being within a few megahertz.
Found in a 1966 General Electric documentation, this dimmer should only be used with incandescent...
This circuit is interrupted when S1 is pressed. The frequency is given by C1, which can be...
We found this sophisticated timer with several functions in a 1993 publication. The circuit can be...