two-pole single-throw
11List of acronyms and initialisms: D — This list contains acronyms, initialisms, and pseudo blends that begin with the letter D. For the purposes of this list: acronym = an abbreviation pronounced as a series of constituent letters, e.g., SARS = severe acute respiratory syndrome… …
12Mercury switch — A Single Pole, Single Throw (SPST) mercury switch on millimetre graph paper …
13DIP switch — Slide style dip switch Rocker style dip switch DI …
14Doorbell — This article is about auditory signals for doorways. For the type of computer interrupt, see Interrupt#Doorbell. Antique shop doorbell …
15Emergency power system — Emergency power systems are a type of system, which may include lighting, generators and other apparatus, to provide backup resources in a crisis or when regular systems fail. They find uses in a wide variety of settings from residential homes to …
161975 World Series — Infobox World Series Expanded year = 1975 champion = Cincinnati Reds (4) champion manager = Sparky Anderson champion games = 108 54, .667, GA: 20 runnerup = Boston Red Sox (3) runnerup manager = Darrell Johnson runnerup games = 95 65, .594, GA:… …
17Glossary of American football — The following terms are used in American football and Canadian football, but see also the glossary of Canadian football. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V …
18eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
19March 2009 in sports — Worldwide current events | Sports events …
202004 American League Championship Series — Team (Wins) Manager …
