We found this circuit in a 1998 publication. The circuit has controls for both frequency and signal strength. A lamp is used to monitor the signals. The supply is made with a voltage of 12 V.
This circuit is suggested by Motorola. The integrated circuit used is not easy to obtain. The...
Using an operational and a transistor according to the maximum desired current, this circuit...
Another of the many anti-bounce circuits that we have in this section of our website. This one...