GB311430A - Improvements relating to loud speakers and associated filter circuits - Google Patents

Improvements relating to loud speakers and associated filter circuits

Info

Publication number
GB311430A
GB311430A GB3044427A GB3044427A GB311430A GB 311430 A GB311430 A GB 311430A GB 3044427 A GB3044427 A GB 3044427A GB 3044427 A GB3044427 A GB 3044427A GB 311430 A GB311430 A GB 311430A
Authority
GB
United Kingdom
Prior art keywords
loud
speaker
coils
coil
steady
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
GB3044427A
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.)
CELEBRITONE Ltd
Original Assignee
CELEBRITONE 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 CELEBRITONE Ltd filed Critical CELEBRITONE Ltd
Priority to GB3044427A priority Critical patent/GB311430A/en
Publication of GB311430A publication Critical patent/GB311430A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

311,430. Green, H., and Celebritone, Ltd. Nov. 12, 1927. Receivers.-A loud-speaker is connected to the plate circuit of a valve by a filter circuit of the choke-capacity type, and the steady plate current is passed through auxiliary coils which assist in magnetizing the loud-speaker magnet. As shown in Fig. 1, the coils a carry the steady plate current, and increase the flux of the permanent magnet b, the audio-frequency current passing through condenser f to the usual telephone coils c. In Fig. 2, the audio-frequency currents pass through the moving-coil c<1> of the loud-speaker, whilst the steady current passes through a coil g, and assists the main field coil j in maintaining the magnetic flux.
GB3044427A 1927-11-12 1927-11-12 Improvements relating to loud speakers and associated filter circuits Expired GB311430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3044427A GB311430A (en) 1927-11-12 1927-11-12 Improvements relating to loud speakers and associated filter circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3044427A GB311430A (en) 1927-11-12 1927-11-12 Improvements relating to loud speakers and associated filter circuits

Publications (1)

Publication Number Publication Date
GB311430A true GB311430A (en) 1929-05-13

Family

ID=10307769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3044427A Expired GB311430A (en) 1927-11-12 1927-11-12 Improvements relating to loud speakers and associated filter circuits

Country Status (1)

Country Link
GB (1) GB311430A (en)

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