CH245733A - Electrodynamic phonogram scanner. - Google Patents

Electrodynamic phonogram scanner.

Info

Publication number
CH245733A
CH245733A CH245733DA CH245733A CH 245733 A CH245733 A CH 245733A CH 245733D A CH245733D A CH 245733DA CH 245733 A CH245733 A CH 245733A
Authority
CH
Switzerland
Prior art keywords
phonogram
electrodynamic
scanner
phonogram scanner
electrodynamic phonogram
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH245733A publication Critical patent/CH245733A/en

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
CH245733D 1943-07-09 1944-07-07 Electrodynamic phonogram scanner. CH245733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL245733X 1943-07-09

Publications (1)

Publication Number Publication Date
CH245733A true CH245733A (en) 1946-11-30

Family

ID=19780826

Family Applications (1)

Application Number Title Priority Date Filing Date
CH245733D CH245733A (en) 1943-07-09 1944-07-07 Electrodynamic phonogram scanner.

Country Status (6)

Country Link
US (1) US2509968A (en)
BE (1) BE457138A (en)
CH (1) CH245733A (en)
DE (1) DE847355C (en)
FR (1) FR906858A (en)
GB (1) GB619182A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858375A (en) * 1955-10-11 1958-10-28 Rca Corp Wide range dynamic phonograph pickup

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1689339A (en) * 1923-12-15 1928-10-30 Western Electric Co Energy-translation system
US1785047A (en) * 1927-09-14 1930-12-16 Rca Corp Method and means for cutting phonograph records
GB384531A (en) * 1931-04-22 1932-12-08 Paillard & Cie Sa E Improvements in or relating to gramophone pick-ups
US2025388A (en) * 1934-09-05 1935-12-24 Bell Telephone Labor Inc Sound reproducing system
NL61306C (en) * 1937-10-07
US2290057A (en) * 1938-09-12 1942-07-14 Jr Theodore Lindenberg Sound recording and reproducing mechanism

Also Published As

Publication number Publication date
US2509968A (en) 1950-05-30
FR906858A (en) 1946-02-22
BE457138A (en)
GB619182A (en) 1949-03-04
DE847355C (en) 1952-08-25

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