This astable multivibrator was obtained from a Mullard documentation from 1960. The components depend on the used transistor and on the frequency, as shown in the table next to the diagram.
In the diagram we show how to divide the frequency by multiples of 10 using several CMOS...
This circuit was found in a 1982 Maplin publication. The circuit is tuned to recognize a 400 Hz...
In the figure we have another application for the LT3518 integrated circuit from Linear Technology...