GB322517A - Device for the control of the measure of transmission in telephone systems, amplifying systems or the like - Google Patents

Device for the control of the measure of transmission in telephone systems, amplifying systems or the like

Info

Publication number
GB322517A
GB322517A GB2560228A GB2560228A GB322517A GB 322517 A GB322517 A GB 322517A GB 2560228 A GB2560228 A GB 2560228A GB 2560228 A GB2560228 A GB 2560228A GB 322517 A GB322517 A GB 322517A
Authority
GB
United Kingdom
Prior art keywords
current
windings
valve
gain
transformer
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
GB2560228A
Other languages
English (en)
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
Priority to FR659990D priority Critical patent/FR659990A/fr
Application filed by Individual filed Critical Individual
Priority to GB2560228A priority patent/GB322517A/en
Publication of GB322517A publication Critical patent/GB322517A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
GB2560228A 1928-09-06 1928-09-06 Device for the control of the measure of transmission in telephone systems, amplifying systems or the like Expired GB322517A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR659990D FR659990A (fr) 1928-09-06 1928-09-05 Dispositif de commande du degré de transmission dans les systèmes téléphoniques, les installations d'amplificateurs et les installations similaires
GB2560228A GB322517A (en) 1928-09-06 1928-09-06 Device for the control of the measure of transmission in telephone systems, amplifying systems or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2560228A GB322517A (en) 1928-09-06 1928-09-06 Device for the control of the measure of transmission in telephone systems, amplifying systems or the like

Publications (1)

Publication Number Publication Date
GB322517A true GB322517A (en) 1929-12-06

Family

ID=10230343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2560228A Expired GB322517A (en) 1928-09-06 1928-09-06 Device for the control of the measure of transmission in telephone systems, amplifying systems or the like

Country Status (2)

Country Link
FR (1) FR659990A (fr)
GB (1) GB322517A (fr)

Also Published As

Publication number Publication date
FR659990A (fr) 1929-07-09

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