How Does a Relay Work?
-- They're electrical switches; like a light switch on the wall, a relay turns on or off the electricity. The difference between a light switch on the...
Is Conduit Ground Good Enough for Electronics?
-- The National Electrical Code (NEC) is concerned with fire safety and with electrical safety. The electronic technician is concerned with those issues, but the electronic technician is also concerned with signal transmission ...Read More
How Does One Connect RS232?
-- So two pieces of equipment can send data to each other, RS232 carries the data. When connecting the equipment using RS232, there's guessing the RS232 is wired correctly, and then there's knowing ... Read More
What is an Arc Flash?
-- Burning, blinded, deafened, an electrician is thrown across the room; having reached into a live electrical panel, all he did was to drop... Read More
What Does E=IR Really Mean?
-- If it isn't just a word, and it isn't really something to be memorized in order to pass a test, what do the letters in Ohm's Law really mean?... Read More
What is a Flyback Diode?
-- Someone Thinks the Flyback Diode is Important. Manufacturers all over the world spend good money installing these diodes, they must think they're ... Read More