COTM

How-To: Ball-in-Cage Switch

How-To: Ball-in-Cage Switch

A ball-in-cage switch is a mechanical alarm switch that works on an ingenious principle. It has a single relatively unstable “open” position, in which a metal ball rests in a small divot in an insulating base, inside a cage made from two U-shaped metal staples that overlap one another without contacting. The ball is too […]

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Switches Made Simple

Switches Made Simple

In this video, Collin gives a comprehensive overview of the humble switch, demonstrating switches of the toggle, DIP, slide, rocker, rotary, and momentary variety, and explains the difference between SPST and DPDT switches in the process.

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How-To: Forrest Mims Puff Switch

How-To: Forrest Mims Puff Switch

A puff switch can be useful when a user cannot be expected to activate a switch by more conventional means.

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