Using a 4046 PLL, which is not very common nowadays, this circuit was found in the October 1994 issue of Electronics Now magazine. The power is provided by the transistor and is small in this case.
This circuit was found in an Electronic Design. It makes use of a relaxation oscillator to trigger...
Indicated for applications with a PC, this circuit was found in an English documentation from...
This circuit was found in a 1967 documentation. The switch diode is a component of the time and is...