GB290558A - - Google Patents

Info

Publication number
GB290558A
GB290558A GB316/28A GB31628A GB290558A GB 290558 A GB290558 A GB 290558A GB 316/28 A GB316/28 A GB 316/28A GB 31628 A GB31628 A GB 31628A GB 290558 A GB290558 A GB 290558A
Authority
GB
United Kingdom
Prior art keywords
changes
armature
post
chamber
diaphragm
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
GB316/28A
Other languages
English (en)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB290558A publication Critical patent/GB290558A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
GB316/28A 1927-05-14 1928-01-05 Expired GB290558A (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191527A US1792497A (en) 1927-05-14 1927-05-14 Vibration-damping device

Publications (1)

Publication Number Publication Date
GB290558A true GB290558A (https=) 1929-04-05

Family

ID=22705849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB316/28A Expired GB290558A (https=) 1927-05-14 1928-01-05

Country Status (5)

Country Link
US (1) US1792497A (https=)
DE (1) DE559010C (https=)
FR (1) FR651221A (https=)
GB (1) GB290558A (https=)
NL (1) NL30962C (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676806A (en) * 1948-05-29 1954-04-27 Columbia Broadcasting Syst Inc Phonograph reproducer arm assembly

Also Published As

Publication number Publication date
NL30962C (https=)
DE559010C (de) 1932-09-15
FR651221A (fr) 1929-02-19
US1792497A (en) 1931-02-17

Similar Documents

Publication Publication Date Title
GB290558A (https=)
US2441651A (en) Phonograph recording head
GB190759A (en) Improvements in electrc-magnetic apparatus for recording sound
US1669170A (en) Damped phonograph apparatus
GB282906A (en) Improvements in or relating to means for recording or reproducing sound
GB452955A (en) Improvements in or relating to phonograph reproducers
GB290264A (en) Improvements in electromagnetic devices for recording sound and reproducing sound from records
US1663884A (en) Device for the transmission of vibratory energy
GB427024A (en) Improvements in or relating to electro-dynamic phonograph reproducers
US1906615A (en) Electric pick-up
GB359352A (en) Improvements in and relating to electro-magnetic sound reproducers and recorders
US2514379A (en) Electrodynamic recording head
US1981793A (en) Sound reproducer
GB286719A (en) Improvements relating to electro-magnetic sound recorders and reproducers
GB355227A (en) Improvements relating to the mounting of vibrating reeds, more particularly for use in connection with electromagnetic gramophone pick-ups, loud speakers and the like
GB437783A (en) Improvements in or relating to vibration translating devices such as electric reproducers for use with sound records
US1644788A (en) Acoustic device
Miller Stylus‐Groove Relations in the Phonograph Playback Processes
Bradshaw et al. Some Applications of Square‐Wave Testing Techniques to the Evaluation of Disk Recording Systems
Mawardi Transient Testing of Loudspeakers
US1784860A (en) Sound recorder
Olson et al. High Efficiency Loudspeakers for Personal Radio Receivers
US1516595A (en) Electrical reproducer for phonographs
GB327989A (en) Improvements in or relating to gramophone records
GB432603A (en) Improvements in or relating to apparatus for photographically recording sound