GB375725A - Improvements in or relating to modulation circuit arrangements for wireless signalling and the like - Google Patents

Improvements in or relating to modulation circuit arrangements for wireless signalling and the like

Info

Publication number
GB375725A
GB375725A GB2286/32A GB228632A GB375725A GB 375725 A GB375725 A GB 375725A GB 2286/32 A GB2286/32 A GB 2286/32A GB 228632 A GB228632 A GB 228632A GB 375725 A GB375725 A GB 375725A
Authority
GB
United Kingdom
Prior art keywords
valve
modulating
impedance
relating
grid
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
GB2286/32A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB375725A publication Critical patent/GB375725A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/22—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to same grid

Landscapes

  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
  • Transmitters (AREA)

Abstract

375,725. Valve modulating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 25, 1932, No. 2286. Convention date, Jan. 24, 1931. [Class 40 (v).] In a modulating arrangement of the kind in which a modulating-valve M is connected in the grid direct-current path of a high-frequency valve V, an impedance RR is connected in series with the valve M, and the voltage across this impedance is applied across the grid and filament of a third valve RV. The plate circuit of the valve RV includes a battery Ez and is connected across the valve M and impedance RR. The modulating voltage is applied to the grid of the valve M. Specification 266,722, [Class 40 (v), Wireless signalling &c.], is referred to.
GB2286/32A 1931-01-24 1932-01-25 Improvements in or relating to modulation circuit arrangements for wireless signalling and the like Expired GB375725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE375725X 1931-01-24

Publications (1)

Publication Number Publication Date
GB375725A true GB375725A (en) 1932-06-30

Family

ID=6344129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2286/32A Expired GB375725A (en) 1931-01-24 1932-01-25 Improvements in or relating to modulation circuit arrangements for wireless signalling and the like

Country Status (2)

Country Link
US (1) US1963117A (en)
GB (1) GB375725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970282A (en) * 1954-12-31 1961-01-31 Siemens Ag Modulator circuit arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970282A (en) * 1954-12-31 1961-01-31 Siemens Ag Modulator circuit arrangement

Also Published As

Publication number Publication date
US1963117A (en) 1934-06-19

Similar Documents

Publication Publication Date Title
GB375725A (en) Improvements in or relating to modulation circuit arrangements for wireless signalling and the like
GB523353A (en) Improvements in or relating to modulation systems
GB469363A (en) Improvements in or relating to amplitude modulating circuit arrangements
GB372414A (en) Improvements in or relating to electrical modulation arrangements suitable for use in radio and other high frequency signalling systems
GB426855A (en) Modulation system for high frequency wireless transmission
GB413544A (en) Improvements in or relating to thermionic valve circuit arrangements
GB454259A (en) Improvements in or relating to modulated carrier wave transmitters
GB403425A (en) Improvements in or relating to modulation systems for use in radio and other carrier frequency signalling systems
GB405019A (en) Improvements in or relating to radio and other modulated carrier wave transmitters
GB506109A (en) Improvements in or relating to carrier wave modulating circuit arrangements
GB372953A (en) Improvements in or relating to electrical circuit arrangements for use in connectionwith gas devices and other similar apparatus exhibiting negative resistance characteristics
GB393206A (en) Improvements in or relating to very short wave modulated radio and other carrier wave transmitters
GB413973A (en) Improvements in or relating to short wave thermionic valve transmitter arrangements
GB388756A (en) Improvements in or relating to modulation systems suitable for use in wireless signalling and like transmission systems
GB436922A (en) Improvements in or relating to modulated carrier wave circuit arrangements
GB193387A (en) Improvements in thermionic generators
GB399074A (en) Improvements in or relating to modulated carrier wave transmitters
GB438018A (en) Improvements in or relating to modulated high frequency circuit arrangements
GB434326A (en) Improvements in or relating to modulated carrier wave systems
GB440612A (en) Improvements in or relating to electron discharge device amplifiers
GB284690A (en) Improvements in circuit arrangements for use in wireless telegraphy and telephony and for like purposes
GB541120A (en) Improvements relating to the modulation of magnetron oscillators
GB226505A (en) Improvements in thermionic oscillation generators
GB376154A (en) Improvements in or relating to radio and other high frequency transmitters
GB259225A (en) Improvements in or relating to radio transmitters