This circuit was originally found in a Philips documentation from 1969. It is intended for sensing golf cart battery voltage. The circuit can be adapted for other types of battery vehicles.
This circuit has visual and audible status indication using an oscillator. The circuit is from a...
I found this circuit in an article in a 2003 publication. The circuit is an example of how to...
A modulated (flashing) siren using the four gates of the 4001 integrated is shown in the figure....