This circuit that draws 1 out of 8 LEDs was found in an 80's American documentation. The circuit can also work with an astable using the 555 instead of the 4046 which is not a common component today.
Amphenol Sine eco | mate ™ connectors can be purchased from Mouser Electronics for a variety of...
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
Found in an American documentation from 1968, this circuit senses the temperature through an...