GB236993A - Improvements in low frequency amplifiers for wireless signals - Google Patents

Improvements in low frequency amplifiers for wireless signals

Info

Publication number
GB236993A
GB236993A GB931924A GB931924A GB236993A GB 236993 A GB236993 A GB 236993A GB 931924 A GB931924 A GB 931924A GB 931924 A GB931924 A GB 931924A GB 236993 A GB236993 A GB 236993A
Authority
GB
United Kingdom
Prior art keywords
chokes
couplings
valves
grid
low frequency
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
GB931924A
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.)
EDGAR LLEWELLYN CROWE
SYDNEY WILLIAM BLIGH
Original Assignee
EDGAR LLEWELLYN CROWE
SYDNEY WILLIAM BLIGH
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 EDGAR LLEWELLYN CROWE, SYDNEY WILLIAM BLIGH filed Critical EDGAR LLEWELLYN CROWE
Priority to GB931924A priority Critical patent/GB236993A/en
Publication of GB236993A publication Critical patent/GB236993A/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
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

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

Abstract

236,993. Bligh, S. W., and Crowe, E. L. April 12, 1924. Thermionic amplifiers.-Relates to amplifying sets of the type in which chokes are inserted in the grid and plate circuits of each valve, and in which the loud speaker is arranged at earth potential so that the direct-current component of the high-tension supply does not pass through its windings. As shown in Fig. 1, the plates of the low-frequency valves 3, 8 are connected through chokes 9, 11 to the high-tension battery 5 the coils 2 and 7 acting as grid chokes. The loud speaker 13 is connected to the negative side of the plate battery, the low-frequency currentspassing via the condenser 12. Grid biasing cells 4, 6 are included in series with the transformer secondary 2 and choke coil 7 respectively. As shown in Fig. 2, transformer couplings 16, 17 preceding the valves 25, 26 are alternated with choke couplings 18, 31, 21 and 19, 32, 22 preceding the valves 23, 24. In another arrangement this sequence of couplings is reversed.
GB931924A 1924-04-12 1924-04-12 Improvements in low frequency amplifiers for wireless signals Expired GB236993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB931924A GB236993A (en) 1924-04-12 1924-04-12 Improvements in low frequency amplifiers for wireless signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB931924A GB236993A (en) 1924-04-12 1924-04-12 Improvements in low frequency amplifiers for wireless signals

Publications (1)

Publication Number Publication Date
GB236993A true GB236993A (en) 1925-07-13

Family

ID=9869672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB931924A Expired GB236993A (en) 1924-04-12 1924-04-12 Improvements in low frequency amplifiers for wireless signals

Country Status (1)

Country Link
GB (1) GB236993A (en)

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