GB153319A - Improvements in and relating to thermionic tube relay arrangements - Google Patents

Improvements in and relating to thermionic tube relay arrangements

Info

Publication number
GB153319A
GB153319A GB20891/20A GB2089120A GB153319A GB 153319 A GB153319 A GB 153319A GB 20891/20 A GB20891/20 A GB 20891/20A GB 2089120 A GB2089120 A GB 2089120A GB 153319 A GB153319 A GB 153319A
Authority
GB
United Kingdom
Prior art keywords
relating
anodes
transformer
circuit
thermionic tube
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
GB20891/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB153319A publication Critical patent/GB153319A/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
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

153,319. Latour, M. Sept. 27, 1915, [Convention date]. Thermionic relays. -In a thermionie relay suitable for the amplification of speech currents an alternating current f<1> is directly applied to the anode filament circuit of a duplex valve to furnish the anode potentials, and the interfering note is extinguished in the telephones. Currents f<2> to be amplified are applied to the grids, and the telephone placed in a circuit coupled, by a transformer B, to part of an inductance AA shunted across the two anodes. The transformer B is provided with an auxiliary winding a, arranged in opposition to the other winding connected across the anodes, so that by adjustment of the rheostat R, the effect of the current of frequency f<1> is neutralized in the telephone circuit.
GB20891/20A 1915-09-27 1920-07-12 Improvements in and relating to thermionic tube relay arrangements Expired GB153319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR153319X 1915-09-27

Publications (1)

Publication Number Publication Date
GB153319A true GB153319A (en) 1921-07-28

Family

ID=8875921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20891/20A Expired GB153319A (en) 1915-09-27 1920-07-12 Improvements in and relating to thermionic tube relay arrangements

Country Status (1)

Country Link
GB (1) GB153319A (en)

Similar Documents

Publication Publication Date Title
GB153319A (en) Improvements in and relating to thermionic tube relay arrangements
US2491590A (en) Means for limiting the modulation of the output of transmitters of communication systems
GB586138A (en) Improvements in or relating to electron discharge valve amplifiers
GB301326A (en) Improvements in or relating to radio transmitters
GB619073A (en) Improvements in or relating to telephone systems
GB566844A (en) Distortion reduction on modulated amplifiers
US1654929A (en) Amplifier circuits
US1722996A (en) Telephone relay connection
GB129659A (en) Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
GB271465A (en) Improved circuit arrangement for modulating the oscillations generated by a thermionic device
GB203293A (en) Improvements in telephonic transmitters and receivers
GB148632A (en) Improvements in transmitters for telephony
GB161577A (en) Switch arrangement for the sending and receiving of electrical oscillations, especially those of low frequency
GB145869A (en) Improvements in or relating to telephonic repeaters
GB154181A (en) Improvements in wireless telephone transmitters
GB425553A (en) Improvements in and relating to thermionic valve amplifiers
GB137098A (en) Improvements in wireless telephone transmitters
GB149466A (en) Improvements in and relating to the use of electron discharge devices in signalling systems
GB141047A (en) Improvements relating to signalling by high-frequency currents, as in wireless telephony
GB101415A (en) Improvements in Radio Transmitter Systems.
GB152693A (en) Negative and positive resistance vacuum tube devices especially for use in wireless telegraphy
GB154537A (en) Improvements in and relating to the wireless transmission of speech
GB194362A (en) Process and apparatus for high frequency telephony with or without wires
GB350254A (en) Improvements in or relating to thermionic relays
GB175635A (en) Improvements in thermionic wireless transmitters