{{short description|Electronic test equipment}} [[File:Odporová dekáda KURBELWIDERSTAND (A).jpg|thumb|A resistance decade box, made in East Germany]]
A '''decade box''' is a piece of test equipment that can be used during prototyping of electronic circuits to substitute the interchanging of different values of certain passive components with a single variable output.<ref name="Dictionary">{{Cite web|title=Dictionary and Thesaurus {{!}} Merriam-Webster|url=https://www.merriam-webster.com/dictionary/decade%20box|access-date=2016-05-22|website=Merriam-Webster}}</ref><ref>{{Cite book|title=Modern Dictionary of Electronics|last=Graf|first=Rudolf F.|publisher=Howard W. Sams & Co., Inc.|year=1973|edition=4th|pages=139}}</ref> Decade boxes are made for resistance, capacitance, and inductance, the values of which can be adjusted incrementally by the turning of a knob or switch, with the contacts of the switch moving along a series of the respective components.<ref name="IM1">{{Cite web|title=More About Decade Boxes|url=https://www.instrumart.com/MoreAboutCategory?CategoryID=5983|access-date=2016-05-22|website=Instrumart}}</ref> The interface for these devices usually consists of dials or adjustable tape counters, and they are operated in-circuit and without any external power source.<ref name=="SF1">{{Cite web|title=Decade Resistance Box Hookup Guide - learn.sparkfun.com|url=https://learn.sparkfun.com/tutorials/decade-resistance-box-hookup-guide|access-date=2016-10-10|website=SparkFun Electronics}}</ref>
==References== {{Reflist}} {{Commons category|Resistance Decade}}
Category:Analog circuits Category:Electronic test equipment
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