GB261415A - Improvements in thermionic valve amplifying systems - Google Patents

Improvements in thermionic valve amplifying systems

Info

Publication number
GB261415A
GB261415A GB28729/26A GB2872926A GB261415A GB 261415 A GB261415 A GB 261415A GB 28729/26 A GB28729/26 A GB 28729/26A GB 2872926 A GB2872926 A GB 2872926A GB 261415 A GB261415 A GB 261415A
Authority
GB
United Kingdom
Prior art keywords
rectifier
magnet
shunt
valve
resistance
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
GB28729/26A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB261415A publication Critical patent/GB261415A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Amplifiers (AREA)

Abstract

261,415. British Thomson-Houston Co., Ltd., (Assignees of Barton, F. C.). Nov. 14, 1925, [Convention date]. Magnetic instruments. - In a. loud-speaking telephone combined with a thermionic amplifier, adapted for operation by alternating current drawn from the house mains, the telephone magnet has two windings, one of which is in series with and the other in shunt to the valve. The plate circuit comprises the filament 11, resistance 10 with by-pass condenser 13, secondary coil 19, rectifier 18, series exciting winding 6 of the magnet, transformer primary 21, and plate 20. The shunt winding 7, however, is bridged directly across the secondary 19 and rectifier 18, and carries current which is not limited by the valve resistance. The moving coil 2 is excited through the transformer 22.
GB28729/26A 1925-11-14 1926-11-15 Improvements in thermionic valve amplifying systems Expired GB261415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69200A US1640436A (en) 1925-11-14 1925-11-14 Amplifying system

Publications (1)

Publication Number Publication Date
GB261415A true GB261415A (en) 1927-07-07

Family

ID=22087379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28729/26A Expired GB261415A (en) 1925-11-14 1926-11-15 Improvements in thermionic valve amplifying systems

Country Status (3)

Country Link
US (1) US1640436A (en)
DE (1) DE546812C (en)
GB (1) GB261415A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770681A (en) * 1951-10-23 1956-11-13 Rola Company Inc Loud-speaker
US5487114A (en) * 1994-02-02 1996-01-23 Dinh; Khanh Magnetless speaker

Also Published As

Publication number Publication date
DE546812C (en) 1932-03-17
US1640436A (en) 1927-08-30

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