LONG-TAILED PAIR

Domain	Definition
Electrical Engineering	Symmetrical circuit in which two transistors share a single emitter resistor(tail resistor); used for low-drift purposes or for differentrial amplification. Source: European Union. (references)
Post & Telecom	A phase-splitting circuit using a pair of similar valves having a high resistance in the common cathode circuit. Source: European Union. (references)
Source: compiled by the editor from various references; see credits.

Specialty Definition: Long-tailed pair

A long-tailed pair is a common design in electronics for implementing a differential amplifier. It consists of two transistors or vacuum tubes (valves), connected so that the emitters (or source or cathode if using a FET or valve) are connected together. This gives the circuit two inputs. The output is taken from one or other of the pair, though some designs may use both.

In a long-tailed pair formed using bipolar junction transistors, the emitters are connected together, and then through a resistor to ground. In this form, one of the transistors can be thought of as an amplifier operating in common emitter configuration, and the other as an emitter follower, feeding the other input signal into the emitter of the first stage. Since a transistor will amplify the current flowing between base and emitter, it follows that the current flowing in the collector circuit of the first transistor is proportional to the difference between the two inputs. However since the circuit is totally symmetrical, either element can be viewed as an amplifier or as an emitter follower, understanding does not depend on which role you assign to which device.

Long-tailed pairs are frequently used in circuits that implement linear amplifiers with feedback, and in operational amplifiers.

Modern Translation: LONG-TAILED PAIR

Language		Translations for "LONG-TAILED PAIR"; alternative meanings/domain in parentheses.
Danish		long-tailed par, katodekoblet modtakttrin, fasevender. (various references)

Dutch		long tailed pair, verschilversterker (differentiating amplifier), balanceerschakeling. (various references)

Finnish		katodikytketty vastakkaisvaiheaste, kaksiputkinen vaiheenkäännin. (various references)

French		déphaseur � deux tubes, "paire � longue queue". (various references)

German		kathodengekoppelte Gegentaktstufe. (various references)

Greek		συμμετρικό κύκλωμα ζεύξεως εκπομπού διαφορικού ενισχυτή, ζεύγος λυχνιών διαχωρισμού φάσης. (various references)

Italian		sfasatore ad accoppiamento catodico, coppia a ripartizione di corrente. (various references)

Pig Latin		ong-tailedlay airpay

Portuguese		par de cauda comprida, desfasador de dois tubos. (various references)

Spanish		par de cola larga, desfasador de dos tubos. (various references)

Swedish		tvårörsfasvändare, transistorpar med gemensam emitter. (various references)
Source: compiled by the editor from various translation references.

Anagrams: LONG-TAILED PAIR

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-d-e-g-i-i-l-l-n-o-p-r-t"
	-3 letters: patrilineal, planetoidal, plantigrade.
	-4 letters: allegation, depilating, depilation, eradiating, gadolinite, ideational, intaglioed, lapidating, lateraling, lipreading, originated, palliating, palliation, patrolling, pollarding, pollinated, readapting, readopting, redialling, relational.
	-5 letters: alienator, allegiant, alligator, altiplano, antiglare, antipodal, aragonite, argillite, dealation, departing, deploring, deporting, derailing, detailing, diapering, editorial, epilation, gallanted, gallopade, genitalia, girandole, gladiator, godparent, gradation, granitoid, indagator, interlaid, lariating.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

LONG-TAILED PAIR

Specialty Definition: LONG-TAILED PAIR

Electrical Engineering

Post & Telecom

Specialty Definition: Long-tailed pair

Crosswords: LONG-TAILED PAIR

Modern Translation: LONG-TAILED PAIR

Danish

Dutch

Finnish

French

German

Greek

Italian

Pig Latin

Portuguese

Spanish

Swedish

Anagrams: LONG-TAILED PAIR

Scrabble® Enable2K-Verified Anagrams

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