GB218731A - Improvements in and relating to the transmission of radiant energy - Google Patents

Improvements in and relating to the transmission of radiant energy

Info

Publication number
GB218731A
GB218731A GB971123A GB971123A GB218731A GB 218731 A GB218731 A GB 218731A GB 971123 A GB971123 A GB 971123A GB 971123 A GB971123 A GB 971123A GB 218731 A GB218731 A GB 218731A
Authority
GB
United Kingdom
Prior art keywords
relating
arc
transmission
thermionic
radiant energy
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
GB971123A
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
Priority to GB971123A priority Critical patent/GB218731A/en
Publication of GB218731A publication Critical patent/GB218731A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/004—Transducers other than those covered by groups H04R9/00 - H04R21/00 using ionised gas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

218,731. Smith, F. E., and Fagleston, I. April 9, 1923. Thermionic modulating apparatus.-A talking arc for use in wireless telephony is connected in series with a high-resistance whose optimum value is approximately equal to (e-a)/2i, e being the voltage in the circuit, i the are current and a the lowest voltage at which the arc will strike. Thin-pointed electrodes of tungsten or magnetite with a small air gap of the order of several millimetres are used. and the variations of potential across the electrodes may be employed for modulating thermionic or other generators.
GB971123A 1923-04-09 1923-04-09 Improvements in and relating to the transmission of radiant energy Expired GB218731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB971123A GB218731A (en) 1923-04-09 1923-04-09 Improvements in and relating to the transmission of radiant energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB971123A GB218731A (en) 1923-04-09 1923-04-09 Improvements in and relating to the transmission of radiant energy

Publications (1)

Publication Number Publication Date
GB218731A true GB218731A (en) 1924-07-09

Family

ID=9877294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB971123A Expired GB218731A (en) 1923-04-09 1923-04-09 Improvements in and relating to the transmission of radiant energy

Country Status (1)

Country Link
GB (1) GB218731A (en)

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