One of the joys of electronics as a hobby is how easy it is to get parts. Literally millions of parts are available from thousands of suppliers and hundreds of distributors, and everyone competes with ...

Schweitzer Engineering Laboratories, Inc. has released its new rotary switch product family. In 2010, SEL purchased VoltAmp, a manufacturer of rotary switches. Building on VoltAmp’s 40 years of switch ...

When you need to make very tiny measurements, even noise in closed relays can throw you off. [Marco] was able to observe this effect and wanted to build a switch that didn’t have this problem. He ...

Microcontroller-based products sometimes require rotary switches. As many microcontrollers have an onboard ADC, it is easy to replace the rotary switch with a low cost potentiometer, when a rotary ...

Anders has introduced a family of rotary switches that have a circular colour TFT-LCD in the middle, as well as a push button function. Available with 1.3, 2.1 or 2.47inch circular displays, the knobs ...

The IDEM Skorpion rotary trapped key systems control access to running equipment with locks and rotary keys. To disable power to machinery and unlock a gate, the key is turned and removed from the ...