GB369480A - Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding - Google Patents

Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding

Info

Publication number
GB369480A
GB369480A GB17374/31A GB1737431A GB369480A GB 369480 A GB369480 A GB 369480A GB 17374/31 A GB17374/31 A GB 17374/31A GB 1737431 A GB1737431 A GB 1737431A GB 369480 A GB369480 A GB 369480A
Authority
GB
United Kingdom
Prior art keywords
diode
filament
earth
amplifier circuit
capacity
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
GB17374/31A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority claimed from US545946A external-priority patent/US1957542A/en
Publication of GB369480A publication Critical patent/GB369480A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0138—Electrical filters or coupling circuits
    • H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microwave Tubes (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Microwave Amplifiers (AREA)

Abstract

369,480. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 15, 1931, No. 17374. Convention date, June 21, 1930. Drawings to Specification. [Classes 39 (i) and 40 (v).] In an amplifier circuit employing parallel feed, the anode current is fed over a saturated diode having an indirectly-heated cathode. The invention utilizes the fact that a saturated diode has practically infinite resistance to alternating current and low resistance to direct current. The appreciable capacity between the diode filament and earth and between the amplifier valve filament and earth results in an effective capacity shunt across the diode which is eliminated by using an equipotential cathode and reducing the filament-earth capacity by winding the heater round the anode which is in the form of a spiral, and employing a very thin cathode.
GB17374/31A 1930-06-21 1931-06-15 Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding Expired GB369480A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL369480X 1930-06-21
US545946A US1957542A (en) 1930-06-21 1931-06-22 Amplifying circuit arrangement with parallel supply
US678040A US2092881A (en) 1930-06-21 1933-06-28 Electron discharge device

Publications (1)

Publication Number Publication Date
GB369480A true GB369480A (en) 1932-03-24

Family

ID=31998808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17374/31A Expired GB369480A (en) 1930-06-21 1931-06-15 Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding

Country Status (5)

Country Link
US (1) US2092881A (en)
BE (1) BE380459A (en)
DE (1) DE563558C (en)
GB (1) GB369480A (en)
NL (1) NL34771C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757106C (en) * 1937-04-01 1953-02-23 Siemens & Halske A G Radiation-cooled heat conductor for regulating very small powers
US4984320A (en) * 1989-04-17 1991-01-15 Foot-Joy, Inc. Shoe sole embossed composition and method

Also Published As

Publication number Publication date
NL34771C (en)
BE380459A (en)
DE563558C (en) 1932-11-07
US2092881A (en) 1937-09-14

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