This is one of the many versions of this oscillator that we have on our website. We found it in an article in Radio Electronics magazine from January 1987. The frequency depends on C1.
The 78XX series voltage regulator integrated circuits do not support an input voltage greater than...
With a 10 V input this circuit provides a 25 V output. The circuit is from December 1985 Radio...
Found in a 1966 General Electric documentation, this circuit controls an incandescent lamp from an...