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.
Two tone siren (CB9085E) This circuit was found in a 1980’s Radio Electronics. The signal must be...
This circuit switches the brightness of the LED. We found it in an English documentation....
This circuit, found in a 1989 publication, only works with incandescent lamps. The maximum power...