GB335417A - Improvements in and relating to electrical signal distributing systems - Google Patents

Improvements in and relating to electrical signal distributing systems

Info

Publication number
GB335417A
GB335417A GB3246129A GB3246129A GB335417A GB 335417 A GB335417 A GB 335417A GB 3246129 A GB3246129 A GB 3246129A GB 3246129 A GB3246129 A GB 3246129A GB 335417 A GB335417 A GB 335417A
Authority
GB
United Kingdom
Prior art keywords
valve
frequency
programme
output
shunted
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
GB3246129A
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.)
ALBERT WARWICK
Original Assignee
ALBERT WARWICK
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 ALBERT WARWICK filed Critical ALBERT WARWICK
Priority to GB3246129A priority Critical patent/GB335417A/en
Publication of GB335417A publication Critical patent/GB335417A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

335,417. Warwick, A., Taylor, J. A. A., and Holmes, H. C. Oct. 25, 1929. Systems for transmitting music.-A dual programme distributing system includes a split low-frequency programme output, Fig. 1, and a high - frequency programme output to the same distribution lines 16 - - 16i. The lowfrequency transmitter has a master first stage comprising a valve amplifier 6 with an input transformer 3, the primary 4 of which is matched to the supply line 1, 2 and the secondary 5 is shunted by a condenser 9 to short-circuit high-frequency signals. The valve 6 is coupled by a common transformer 10, shunted by condensers 12, 13 to absorb high-frequency signals, to the grids of valve amplifiers 15 - - 15i in parallel, each of which operates a district line so that uniform signal strength is obtained over subscribers' branch lines. The high-tension current for the output valves is supplied through a chokecapacity feed 22, 26, 24 25 to prevent direct current reaching the district service lines if transformers 17 - . 17i break down.
GB3246129A 1929-10-25 1929-10-25 Improvements in and relating to electrical signal distributing systems Expired GB335417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3246129A GB335417A (en) 1929-10-25 1929-10-25 Improvements in and relating to electrical signal distributing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3246129A GB335417A (en) 1929-10-25 1929-10-25 Improvements in and relating to electrical signal distributing systems

Publications (1)

Publication Number Publication Date
GB335417A true GB335417A (en) 1930-09-25

Family

ID=10338944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3246129A Expired GB335417A (en) 1929-10-25 1929-10-25 Improvements in and relating to electrical signal distributing systems

Country Status (1)

Country Link
GB (1) GB335417A (en)

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