GB335639A - Improvements in thermionic amplifiers for use in conjunction with photo-electric devices - Google Patents

Improvements in thermionic amplifiers for use in conjunction with photo-electric devices

Info

Publication number
GB335639A
GB335639A GB20434/29A GB2043429A GB335639A GB 335639 A GB335639 A GB 335639A GB 20434/29 A GB20434/29 A GB 20434/29A GB 2043429 A GB2043429 A GB 2043429A GB 335639 A GB335639 A GB 335639A
Authority
GB
United Kingdom
Prior art keywords
photo
series
conjunction
electric devices
thermionic
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
GB20434/29A
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co 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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Priority to GB20434/29A priority Critical patent/GB335639A/en
Priority to FR695832D priority patent/FR695832A/en
Priority to US463419A priority patent/US1884376A/en
Publication of GB335639A publication Critical patent/GB335639A/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
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Abstract

335,639. Gramophone Co., Ltd., and Tedham, W. F. July 3,1929. Thermionic amplifiers.-In a thermionic valve amplifier with a photo-electric cell 1 in the input circut, a. choke coil 9 is connected in series with the cell. An additional coil may be connected in series with an inter-valve coupling condenser 11 (Fig. 2, not shown). A damped oscillatory circuit comprising a condenser 12 in parallel with an inductance 13 and a resistance 14 in series is connected in the grid circuit of a second amplifying valve 8.
GB20434/29A 1929-07-03 1929-07-03 Improvements in thermionic amplifiers for use in conjunction with photo-electric devices Expired GB335639A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB20434/29A GB335639A (en) 1929-07-03 1929-07-03 Improvements in thermionic amplifiers for use in conjunction with photo-electric devices
FR695832D FR695832A (en) 1929-07-03 1930-05-19 Thermionic amplifier for photoelectric device
US463419A US1884376A (en) 1929-07-03 1930-06-24 Thermionic amplifier for use in conjunction with photo-electric devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20434/29A GB335639A (en) 1929-07-03 1929-07-03 Improvements in thermionic amplifiers for use in conjunction with photo-electric devices

Publications (1)

Publication Number Publication Date
GB335639A true GB335639A (en) 1930-10-02

Family

ID=10145873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20434/29A Expired GB335639A (en) 1929-07-03 1929-07-03 Improvements in thermionic amplifiers for use in conjunction with photo-electric devices

Country Status (3)

Country Link
US (1) US1884376A (en)
FR (1) FR695832A (en)
GB (1) GB335639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586582A (en) * 1944-06-14 1952-02-19 Hartford Nat Bank & Trust Co Device comprising an amplifier, a photoelectric cell, and a lead connecting them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586582A (en) * 1944-06-14 1952-02-19 Hartford Nat Bank & Trust Co Device comprising an amplifier, a photoelectric cell, and a lead connecting them

Also Published As

Publication number Publication date
FR695832A (en) 1930-12-22
US1884376A (en) 1932-10-25

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