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.
We found this circuit in an old Mullard (Philips) documentation on the 555 and 556 integrated circuit...
This circuit was obtained from an Electronic Design of 1968. The circuit uses components of the...
This circuit was found in a 70s National Semiconductor manual. It has a different output way for...