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GB682206A - Improvements in or relating to amplifiers employing semi-conductors - Google Patents

Improvements in or relating to amplifiers employing semi-conductors

Info

Publication number
GB682206A
GB682206A GB7018/50A GB701850A GB682206A GB 682206 A GB682206 A GB 682206A GB 7018/50 A GB7018/50 A GB 7018/50A GB 701850 A GB701850 A GB 701850A GB 682206 A GB682206 A GB 682206A
Authority
GB
United Kingdom
Prior art keywords
electrode
base electrode
collector
base
respect
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
GB7018/50A
Inventor
Kenneth Albert Matthews
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB682206A publication Critical patent/GB682206A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J19/44—Insulation between electrodes or supports within the vacuum space
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/14—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with amplifying devices having more than three electrodes or more than two PN junctions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Bipolar Transistors (AREA)
  • Bipolar Integrated Circuits (AREA)

Abstract

682,206. Semi-conductor amplifiers. STANDARD TELEPHONES & CABLES, Ltd. March 16, 1951 [March 21, 1950], No. 7018/50. Class 40 (iv). [Also in Group XL (c)] An electric amplifying circuit comprises a semi-conductor body of a single N or P type, having a base electrode providing an ohmic contact, a rectifier contact biased with respect to the base electrode to form an emitter electrode, and two further rectifying contacts separately biased with respect to each other to form a collector electrode and a further base electrode, the input being applied between the emitter and the first base electrode, and the output being taken from the collector and the further base electrode. The Figure shows a transistor arrangement in which a block 1 of N-type semi-conductor material such as germanium has an emitter electrode 3 biased positively by source 6 with respect to base electrode 2, and the collector electrode 4 is biassed negatively with respect to base electrode 5 by source 10. Base electrode 5 consists of a point contact on the surface of the semiconductor and is situated near the collector electrode, reference being made to Specification 681,810 regarding the use of point contacts as base electrodes. Input signals are applied via a transformer to the emitter electrode, and output signals are taken from the collector; the two base electrodes may be connected by a condenser 14. Specification 681,809 also is referred to.
GB7018/50A 1950-03-21 1950-03-21 Improvements in or relating to amplifiers employing semi-conductors Expired GB682206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7017/50A GB695019A (en) 1950-03-21 1950-03-21 Improvements in or relating to amplifiers employing semi-conductors

Publications (1)

Publication Number Publication Date
GB682206A true GB682206A (en) 1952-11-05

Family

ID=9825054

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7018/50A Expired GB682206A (en) 1950-03-21 1950-03-21 Improvements in or relating to amplifiers employing semi-conductors
GB7017/50A Expired GB695019A (en) 1950-03-21 1950-03-21 Improvements in or relating to amplifiers employing semi-conductors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7017/50A Expired GB695019A (en) 1950-03-21 1950-03-21 Improvements in or relating to amplifiers employing semi-conductors

Country Status (5)

Country Link
US (1) US2680159A (en)
DE (1) DE968666C (en)
FR (1) FR1034265A (en)
GB (2) GB682206A (en)
NL (1) NL90299C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB692337A (en) * 1951-10-24 1953-06-03 Standard Telephones Cables Ltd Improvements in or relating to electron beam tube arrangements
US2717342A (en) * 1952-10-28 1955-09-06 Bell Telephone Labor Inc Semiconductor translating devices
DE1039646B (en) * 1953-10-19 1958-09-25 Siemens Ag Method for producing a semiconductor arrangement with several transitions between zones of different conductivity types
US2829992A (en) * 1954-02-02 1958-04-08 Hughes Aircraft Co Fused junction semiconductor devices and method of making same
US2886748A (en) * 1954-03-15 1959-05-12 Rca Corp Semiconductor devices
US2805347A (en) * 1954-05-27 1957-09-03 Bell Telephone Labor Inc Semiconductive devices
US2846626A (en) * 1954-07-28 1958-08-05 Raytheon Mfg Co Junction transistors and methods of forming them
US2889417A (en) * 1956-01-26 1959-06-02 Honeywell Regulator Co Tetrode transistor bias circuit
CH335368A (en) * 1957-12-28 1958-12-31 Suisse Horlogerie Transistor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2402661A (en) * 1941-03-01 1946-06-25 Bell Telephone Labor Inc Alternating current rectifier
US2600500A (en) * 1948-09-24 1952-06-17 Bell Telephone Labor Inc Semiconductor signal translating device with controlled carrier transit times
US2595497A (en) * 1949-01-22 1952-05-06 Rca Corp Semiconductor device for two-stage amplifiers
US2561411A (en) * 1950-03-08 1951-07-24 Bell Telephone Labor Inc Semiconductor signal translating device

Also Published As

Publication number Publication date
GB695019A (en) 1953-08-05
DE968666C (en) 1958-03-20
US2680159A (en) 1954-06-01
NL90299C (en)
FR1034265A (en) 1953-07-21

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