Restoring multiple speeds to your auto heater/air conditioner blower by replacing a resistor module is a simple repair.

Mostly-Analog editor Andy Turudic takes a look at the original 1963 ISSCC paper that described the world’s first CMOS process ...

A simple, low-cost Vehicle Theft Detector device can effectively alert homeowners or occupants if a parked vehicle is moved ...

It is clear, that the relay is an ON-OFF device, a switch, suitable for building logical circuits. By the beginning of the 20th century, a number of inventors recognized that the ability (as well as ...

The look, the feel, the sound — there are few things more satisfying in this world than a nice switch. If you’re putting together a device that you plan on using frequently, outfitting it with ...

There were several basic logic circuits built from transistors, including inverters, NOR, and AND gates as well as various flip flops and a comparator. The computer’s main logic was described in ...