GB162771A - Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony - Google Patents

Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony

Info

Publication number
GB162771A
GB162771A GB322220A GB322220A GB162771A GB 162771 A GB162771 A GB 162771A GB 322220 A GB322220 A GB 322220A GB 322220 A GB322220 A GB 322220A GB 162771 A GB162771 A GB 162771A
Authority
GB
United Kingdom
Prior art keywords
valve
telephony
relating
low frequency
electrical circuits
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
GB322220A
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.)
ARTHUR KENNETH MACRORIE
Original Assignee
ARTHUR KENNETH MACRORIE
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 ARTHUR KENNETH MACRORIE filed Critical ARTHUR KENNETH MACRORIE
Priority to GB322220A priority Critical patent/GB162771A/en
Publication of GB162771A publication Critical patent/GB162771A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

162,771. Macrorie, A. K., and Long, S. H. Feb. 2, 1920. Audible reception of unmodulated continuous waves; thermionic valves, arrangement and con. nections of.-In a system of wireless reception, a valve for amplifying low-frequency signals is controlled by another valve so as to oscillate only on the reception of signals. In an example, the oscillations arrive at the points C, D. The valve E is first adjusted to give an audible note in the telephone H by means of the coils A, B, and then prevented from oscillating by the potentiometer G. The resistance of the valve F, which is in the grid circuit of the valve E, is lowered by signals, and the valve E thereupon oscillates but does not continue to do so after the signal.
GB322220A 1920-02-02 1920-02-02 Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony Expired GB162771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB322220A GB162771A (en) 1920-02-02 1920-02-02 Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB322220A GB162771A (en) 1920-02-02 1920-02-02 Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony

Publications (1)

Publication Number Publication Date
GB162771A true GB162771A (en) 1921-05-02

Family

ID=9754252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB322220A Expired GB162771A (en) 1920-02-02 1920-02-02 Improvements in and relating to low frequency amplification in electrical circuits for use in wireless telegraphy and telephony

Country Status (1)

Country Link
GB (1) GB162771A (en)

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