
1) Emitter
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https://www.crosswordclues.com/clue/discharger

A discharger in electronics is a device or circuit that releases stored energy or electric charge from a battery, capacitor or other source. Discharger types include: See also Bleeder resistor ...
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http://en.wikipedia.org/wiki/Discharger

• (n.) One who, or that which, discharges. Specifically, in electricity, an instrument for discharging a Leyden jar, or electrical battery, by making a connection between the two surfaces; a discharging rod.
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http://thinkexist.com/dictionary/meaning/discharger/
Dis·char'ger noun One who, or that which, discharges. Specifically, in electricity, an instrument for discharging a Leyden jar, or electrical battery, by making a connection between the two surfaces; a discharging rod.
Found on
http://www.encyclo.co.uk/webster/D/76
No exact match found.