Found in a 1967 EEE, this circuit generates a constant amplitude signal, stabilized by a zener diode. The circuit can operate with voltages from 18 to 22 V.
The figure shows how to change the frequency of a 5 V LED blinking. The capacitor can have other...
We find this simple circuit that operates at a frequency of 5 to 10 MHz in an old English...
With this circuit it is possible to use an oscilloscope as a quick component test, checking its...