FR930897A - Improvements to electric recording and reproduction heads on phonographic discs - Google Patents

Improvements to electric recording and reproduction heads on phonographic discs

Info

Publication number
FR930897A
FR930897A FR930897DA FR930897A FR 930897 A FR930897 A FR 930897A FR 930897D A FR930897D A FR 930897DA FR 930897 A FR930897 A FR 930897A
Authority
FR
France
Prior art keywords
reproduction heads
electric recording
phonographic discs
phonographic
discs
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
Other languages
French (fr)
Inventor
Michael Lawrence Gayford
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB22061/44A external-priority patent/GB608035A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR930897A publication Critical patent/FR930897A/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
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR930897D 1944-11-09 1946-07-20 Improvements to electric recording and reproduction heads on phonographic discs Expired FR930897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22061/44A GB608035A (en) 1944-11-09 1944-11-09 Improvements in or relating to electrical recorders and reproducers

Publications (1)

Publication Number Publication Date
FR930897A true FR930897A (en) 1948-02-06

Family

ID=10173269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR930897D Expired FR930897A (en) 1944-11-09 1946-07-20 Improvements to electric recording and reproduction heads on phonographic discs

Country Status (2)

Country Link
ES (1) ES173333A1 (en)
FR (1) FR930897A (en)

Also Published As

Publication number Publication date
ES173333A1 (en) 1946-06-01

Similar Documents

Publication Publication Date Title
FR1051015A (en) Improvements to magnetic recording and reproducing devices
FR930897A (en) Improvements to electric recording and reproduction heads on phonographic discs
FR1198858A (en) Advanced sound recording disc
FR1121583A (en) Magnetic sound recording and reproducing head
FR933791A (en) Improvements to sound recording and reproduction heads
FR904200A (en) Phonographic recording disc
CA417722A (en) Sound recording and reproducing device
CA419831A (en) Sound recording and reproducing device
FR984836A (en) Magnetic sound recording phonograph disc
FR901525A (en) Improvements in phonographic record reproduction apparatus
CA424415A (en) Sound recording and reproducing method
FR931028A (en) Enhancements to electric sound recording and reproduction heads
CA424970A (en) Record for recording and reproducing sound
CA418948A (en) Recording and reproducing element
FR894595A (en) Method of recording and reproducing stereophonic sound recordings
FR909149A (en) Improvements to sound recording and reproducing devices
FR901175A (en) Further training in phonographic recording machines
FR984323A (en) Phonographic recording disc
FR1082942A (en) Electric recording and reproducing apparatus
CA405167A (en) Sound recording and reproducing apparatus
CA412800A (en) Sound film recording or reproducing device
CA418614A (en) Sound record and reproducing system
FR913526A (en) Recorder for disc recording
CA407233A (en) Sound recording and reproducing machine
FR1090732A (en) Improvements to phonographs and record players