GB327898A - Improvements in or relating to wireless receiving circuits - Google Patents

Improvements in or relating to wireless receiving circuits

Info

Publication number
GB327898A
GB327898A GB1629329A GB1629329A GB327898A GB 327898 A GB327898 A GB 327898A GB 1629329 A GB1629329 A GB 1629329A GB 1629329 A GB1629329 A GB 1629329A GB 327898 A GB327898 A GB 327898A
Authority
GB
United Kingdom
Prior art keywords
transformers
chokes
condensers
relays
relay
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
GB1629329A
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 GB1629329A priority Critical patent/GB327898A/en
Publication of GB327898A publication Critical patent/GB327898A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier

Landscapes

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

Abstract

327,898. Newman, A. M., and Suchomski, J. May 27, 1929. Telephonic repeaters.-A speech amplifier comprises two or more magneto-microphonic relays, the microphone of one of which is connected through a condenser to the primary of a transformer whose secondary is connected to the primary winding of the succeeding relay. The varying currents from the microphones 10 of relays 8a and 8, pass through condensers 21 to the primaries 17 and 13 of transformers 16 and 12 respectively, chokes 20a and 20b being interposed in the leads from the common battery 19, to isolate the latter from speech currents. The secondaries 18 and 14 of transformers 16 and 12 respectively supply the primary winding 9 of the second relay 8, and the loud-speaker 15, respectively. In another modification (Fig. 2, not shown) a separate battery is used in each microphone circuit, a choke and condenser performing the same functions as the chokes and condensers of Fig. 1. The transformers preferably have a high ratio, and one or more of the stages may be directly coupled to the succeeding stage.
GB1629329A 1929-05-27 1929-05-27 Improvements in or relating to wireless receiving circuits Expired GB327898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1629329A GB327898A (en) 1929-05-27 1929-05-27 Improvements in or relating to wireless receiving circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1629329A GB327898A (en) 1929-05-27 1929-05-27 Improvements in or relating to wireless receiving circuits

Publications (1)

Publication Number Publication Date
GB327898A true GB327898A (en) 1930-04-17

Family

ID=10074701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1629329A Expired GB327898A (en) 1929-05-27 1929-05-27 Improvements in or relating to wireless receiving circuits

Country Status (1)

Country Link
GB (1) GB327898A (en)

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