This circuit was found in the October 1994 issue of Electronics Now magazine. The 40446 IC is a PLL that is not very common today. The circuit has two types of effects.
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...