GB531899A - Improvements in electric pick-up arms for phonographs - Google Patents

Improvements in electric pick-up arms for phonographs

Info

Publication number
GB531899A
GB531899A GB20175/39A GB2017539A GB531899A GB 531899 A GB531899 A GB 531899A GB 20175/39 A GB20175/39 A GB 20175/39A GB 2017539 A GB2017539 A GB 2017539A GB 531899 A GB531899 A GB 531899A
Authority
GB
United Kingdom
Prior art keywords
pick
lamp
arms
circuit
phonographs
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
GB20175/39A
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of GB531899A publication Critical patent/GB531899A/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

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

531,899. Lights on pick-up arms. FABBRICA ITALIANA MAGNETI MARELLI. July 11, 1939, No. 20175. Convention date, Sept. 16, 1938. [Class 40 (ii)] A translucent rod 13 is arranged between a lamp 3 on a pick-up arm 2 and the pick-up needle 5 to transmit illumination from the lamp to the record in the neighbourhood of the needle. If a radio receiving set is combined with the gramophone, the circuit of the lamp 3 is arranged to be independent of the circuit of the receiving set and to be closed by a switch which also serves to close the circuit of the motor driving the gramophone turntable. Specification 440,998 is referred to.
GB20175/39A 1938-09-16 1939-07-11 Improvements in electric pick-up arms for phonographs Expired GB531899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT531899X 1938-09-16

Publications (1)

Publication Number Publication Date
GB531899A true GB531899A (en) 1941-01-14

Family

ID=11280688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20175/39A Expired GB531899A (en) 1938-09-16 1939-07-11 Improvements in electric pick-up arms for phonographs

Country Status (1)

Country Link
GB (1) GB531899A (en)

Similar Documents

Publication Publication Date Title
GB531899A (en) Improvements in electric pick-up arms for phonographs
GB584747A (en) Improvements in and relating to talking machines with automatic record changer for playing records of different diameters
GB440998A (en) Improved electric pick-up for phonographs
GB501956A (en) Incandescent electric lamp
GB531740A (en) Improvements in pick-ups for sound reproduction
GB534741A (en) Improved tone arm for gramophones
GB423163A (en) Improvements in and relating to radio-gramophones and the like
GB554470A (en) An improved gramophone pick-up arm
GB699621A (en) Improvements in or relating to gramophones
GB684216A (en) Improvements in gramophone record players
GB626169A (en) Improvements in or relating to phonographs
GB465193A (en) Improvements in or relating to direction indicating devices, particularly for automobiles
GB347626A (en) Improved means for illuminating the interior of talking machine cabinets
GB488202A (en) Improvements in electric incandescent lamps
GB617882A (en) Improvements in or relating to record playing mechanism
GB474900A (en) Driving direction indicator, especially for motor cycles
GB375265A (en) Electric talking-machine actuated by the combinations of a spring control motor with an electric current dynamo
GB377610A (en) Combined electrical gramophone apparatus with wireless receiver in the loudspeaker casing
GB617883A (en) Improvements in or relating to apparatus for playing gramophone records
GB312211A (en) Improvements relating to gramophones
GB678706A (en) Improvements in phonographs
CA390193A (en) Phonograph pick-up
GB498360A (en) Improvements in or relating to sound reproducing apparatus
CA386443A (en) Phonograph stylus arm switch
GB459787A (en) Improvements relating to sound reproducing machines