The frequency of this circuit can be varied from zero. The circuit uses the CMOS 4046 and was found in the November 1984 issue of Radio Electronics magazine. The base frequency is given by C1.
This circuit uses a symmetrical power supply, and the motor is for the voltage indicated in the...
We found this circuit in an old documentation, but it is still current. General purpose...
The circuit exemplified in figure 8 is suggested by National Semiconductor and is based on an...