On one end of the twisted pair is a power supply and decoder circuit, which sends 9 volts up the line to power the PIC sensor. The decoder is based on a CD4538 dual monostable multivibrator, set ...

Factory Wonders. How Resistors Work in Electronic Circuits: A Complete Explanation. Posted: June 9, 2025 | Last updated: July 11, 2025. Delve into the fascinating world of resistors, a key ...

This simple scheme is based on the circuit shown below (Figure 1) in my recent article [1]. Figure 1 Using common transistor optocoupler to achieve a tube-like sound. It is known that the main feature ...