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GB882294A - Improvements relating to transistor circuits - Google Patents

Improvements relating to transistor circuits

Info

Publication number
GB882294A
GB882294A GB1698159A GB1698159A GB882294A GB 882294 A GB882294 A GB 882294A GB 1698159 A GB1698159 A GB 1698159A GB 1698159 A GB1698159 A GB 1698159A GB 882294 A GB882294 A GB 882294A
Authority
GB
United Kingdom
Prior art keywords
transistor
collector
emitter
circuit
impedance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1698159A
Inventor
Barrington John Leonard White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAWE INSTR Ltd
Original Assignee
DAWE INSTR Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DAWE INSTR Ltd filed Critical DAWE INSTR Ltd
Priority to GB1698159A priority Critical patent/GB882294A/en
Publication of GB882294A publication Critical patent/GB882294A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

882,294. Transistor amplifying circuits. DAWE INSTRUMENTS Ltd. May 5, 1960 [May 19, 1959], No. 16981/59. Class 40(6). A transistor amplifier circuit having a high input impedance comprises two emitterfollower cascaded function transistors 1, 2, stage 1 having an emitter load impedance in two series-connected parts 3, 4 the latter part also being common to the emitter circuit of transistor 2. The emitter of transistor 1 is connected for A.C. signals only to the base of transistor 2 and its collector is connected to the junction of the impedances 3, 4 through capacitor 6 which may be replaced by a Zener diode or an inert cell which act as voltage stabilizers. One terminal 11 of the 'power supply is connected to the collector of transistor 2 and thence via the high impedance 7 to the collector of transistor 1. The value of resistor 4 is of smaller magnitude than any of the other resistive components in the circuit.
GB1698159A 1959-05-19 1959-05-19 Improvements relating to transistor circuits Expired GB882294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1698159A GB882294A (en) 1959-05-19 1959-05-19 Improvements relating to transistor circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1698159A GB882294A (en) 1959-05-19 1959-05-19 Improvements relating to transistor circuits

Publications (1)

Publication Number Publication Date
GB882294A true GB882294A (en) 1961-11-15

Family

ID=10087084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1698159A Expired GB882294A (en) 1959-05-19 1959-05-19 Improvements relating to transistor circuits

Country Status (1)

Country Link
GB (1) GB882294A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223938A (en) * 1962-05-11 1965-12-14 Bendix Corp Emitter follower transistor amplifier
US3260949A (en) * 1963-09-27 1966-07-12 Leeds & Northrup Co High input impedance direct-coupled transistor amplifier including negative-feedback means
US3332027A (en) * 1962-08-28 1967-07-18 Tdk Electronics Co Ltd Output transistor protecting system in a transistor amplifier circuit
US3364523A (en) * 1965-05-28 1968-01-23 Barmag Barmer Maschf Seal packing fluid seals for extrusion machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223938A (en) * 1962-05-11 1965-12-14 Bendix Corp Emitter follower transistor amplifier
US3332027A (en) * 1962-08-28 1967-07-18 Tdk Electronics Co Ltd Output transistor protecting system in a transistor amplifier circuit
US3260949A (en) * 1963-09-27 1966-07-12 Leeds & Northrup Co High input impedance direct-coupled transistor amplifier including negative-feedback means
US3364523A (en) * 1965-05-28 1968-01-23 Barmag Barmer Maschf Seal packing fluid seals for extrusion machines

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