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GB337274A - Improvements in or relating to electrical audio-frequency amplification apparatus - Google Patents

Improvements in or relating to electrical audio-frequency amplification apparatus

Info

Publication number
GB337274A
GB337274A GB3988829A GB3988829A GB337274A GB 337274 A GB337274 A GB 337274A GB 3988829 A GB3988829 A GB 3988829A GB 3988829 A GB3988829 A GB 3988829A GB 337274 A GB337274 A GB 337274A
Authority
GB
United Kingdom
Prior art keywords
windings
relating
frequency amplification
resistances
push
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
GB3988829A
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.)
KINEMAS Ltd
Original Assignee
KINEMAS 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 KINEMAS Ltd filed Critical KINEMAS Ltd
Priority to GB3988829A priority Critical patent/GB337274A/en
Publication of GB337274A publication Critical patent/GB337274A/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
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

337,274. Kinemas, Ltd., and Archer, C. Dec. 31, 1929. Thermionic amplifiers .-An audiofrequency amplifier comprises a plurality of push-pull units, the output voltages of which are additively combined in a common output. The Figure shows two pairs of push-pull connected valves 2, 3, the grids of which are fed from separate secondaries on the intervalve transformer 7, while the anodes are connected to the two primary windings 10, of the output transformer. The two latter windings are arranged 180‹ out of phase so that their outputs are additively combined in the secondary 11. The qualities of the windings 6 are compensated by resistances 12, 13 which also serve to prevent selfoscillation; imperfect matching of the valves is counteracted by resistances 14.
GB3988829A 1929-12-31 1929-12-31 Improvements in or relating to electrical audio-frequency amplification apparatus Expired GB337274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3988829A GB337274A (en) 1929-12-31 1929-12-31 Improvements in or relating to electrical audio-frequency amplification apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3988829A GB337274A (en) 1929-12-31 1929-12-31 Improvements in or relating to electrical audio-frequency amplification apparatus

Publications (1)

Publication Number Publication Date
GB337274A true GB337274A (en) 1930-10-30

Family

ID=10412028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3988829A Expired GB337274A (en) 1929-12-31 1929-12-31 Improvements in or relating to electrical audio-frequency amplification apparatus

Country Status (1)

Country Link
GB (1) GB337274A (en)

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