How to Make Simplest COR

How to Make Simplest COR.

Simplest COR - SIMPLE In this post I accidentally Generate a COR that is very simple and easy to make. This design can hopefully meet the expectations of some friends who ask, and ask a simple repeater COR schematic. COR consists of only one type IC CD40106 (Hex Schmitt Trigger) then 1 IC Optocoupler 4N33 or similar type as the PTT switch, or can also be replaced with NPN transistors such as the 2N3904 or the like, and a few other components including 2 pcs 1N4148 diodes, resistors , Electrolytic Capacitor and Resistor as a regulator Variable delay PTT (Hang Time) this circuit can work at 5V Voltage s / d 15V. see the following schematic drawings If Delay PTT (Hang Time) perceived lack of enough ... too fast then try to replace the capacitor with a higher value such as 4.7 uF or 10uF