FR870981A - Electromagnetic device for recording on phonographic discs, which can also be used for their reproduction - Google Patents

Electromagnetic device for recording on phonographic discs, which can also be used for their reproduction

Info

Publication number
FR870981A
FR870981A FR870981DA FR870981A FR 870981 A FR870981 A FR 870981A FR 870981D A FR870981D A FR 870981DA FR 870981 A FR870981 A FR 870981A
Authority
FR
France
Prior art keywords
reproduction
recording
electromagnetic device
phonographic discs
phonographic
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
Italo Ninni
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 filed Critical
Application granted granted Critical
Publication of FR870981A publication Critical patent/FR870981A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/36—Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves, e.g. by lead-screw
FR870981D 1940-04-13 1941-03-19 Electromagnetic device for recording on phonographic discs, which can also be used for their reproduction Expired FR870981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT870981X 1940-04-13

Publications (1)

Publication Number Publication Date
FR870981A true FR870981A (en) 1942-04-01

Family

ID=11330746

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870981D Expired FR870981A (en) 1940-04-13 1941-03-19 Electromagnetic device for recording on phonographic discs, which can also be used for their reproduction

Country Status (1)

Country Link
FR (1) FR870981A (en)

Similar Documents

Publication Publication Date Title
FR949691A (en) Number recorder for automatic telephony
FR870981A (en) Electromagnetic device for recording on phonographic discs, which can also be used for their reproduction
FR867948A (en) Writing device for style recording devices
FR877153A (en) Gramophone disc changer
FR877154A (en) Gramophone disc changer
FR882427A (en) Gramophone disc changer
CA392335A (en) Phonograph record changing device
FR872627A (en) Disc brakes and more specifically for vehicles
FR895056A (en) Device for gramophone record changer
FR893926A (en) Drive device for sound recording machines on discs
FR882980A (en) Device for automatic gramophone record changers
FR882979A (en) Device for automatic gramophone record changers
FR874267A (en) Disc lubrication device for high peripheral speeds
DK61861C (en) Record Selecting Magasing Gramophone.
DK64754C (en) Disc changer for Magasing gramophones.
FR877227A (en) Rehearsal device for gramophones for the consecutive automatic passage of several discs
DK60997C (en) Plate change device for Magasing gramophones.
DK63285C (en) Plate change device for Magasing gramophones.
DK74797C (en) Toner recording device when changing the width of the tone track.
CA392536A (en) Recording device
FR854929A (en) Device for recording phonograms
CH213939A (en) Sound recording and playback device with rewindable sound carrier.
FR897284A (en) Record changer device for phonographs
CA386287A (en) Gramophone device
FR936830A (en) Phonograph with automatic device for changing discs