We found this circuit in the March 1995 issue of Electronics Now magazine. The circuit has a frequency range determined by C1 and R3. The signal generated is square.
Found in EEE documentation, this circuit can have the duration and frequency adjusted separately....
August 2016 - Mouser Electronics is providing the ew converters step down LM53625-Q1 and...
The circuit is from a 1966 English magazine, but it can be assembled with more modern transistors such as...