GB413840A - Improvements in and relating to electrical "pick-ups" for gramophones - Google Patents

Improvements in and relating to electrical "pick-ups" for gramophones

Info

Publication number
GB413840A
GB413840A GB1281033A GB1281033A GB413840A GB 413840 A GB413840 A GB 413840A GB 1281033 A GB1281033 A GB 1281033A GB 1281033 A GB1281033 A GB 1281033A GB 413840 A GB413840 A GB 413840A
Authority
GB
United Kingdom
Prior art keywords
pick
base plate
coil
arm
ups
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
GB1281033A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1281033A priority Critical patent/GB413840A/en
Publication of GB413840A publication Critical patent/GB413840A/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

413,840. Gramophone pick-ups. CAMP, H. J., 17, Meadway, Bush Hill Park, Enfield, Middlesex, and WATSON, C., 124, The Ridgeway, Chingford, London. May 2, 1933, No. 12810. [Class 40 (iv).] A gramophone pick-up comprising an armature 10 pivotally mounted between polepieces 6 and surrounded by a coil 13 has the coil tapped, the tappings being brought out to contact studs 20 on the base plate 7, a switch arm 18 pivotally mounted on the base plate co-operating with the studs 20 to vary the impedance of the coil. If desired, the switch arm may be mounted on the interior of the base plate and arranged so that its outer end extends through a slot therein. According to further modifications, the adjustable switching arrangement may be mounted in the bracket carrying the pick-up arm or in the arm itself.
GB1281033A 1933-05-02 1933-05-02 Improvements in and relating to electrical "pick-ups" for gramophones Expired GB413840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1281033A GB413840A (en) 1933-05-02 1933-05-02 Improvements in and relating to electrical "pick-ups" for gramophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1281033A GB413840A (en) 1933-05-02 1933-05-02 Improvements in and relating to electrical "pick-ups" for gramophones

Publications (1)

Publication Number Publication Date
GB413840A true GB413840A (en) 1934-07-26

Family

ID=10011550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1281033A Expired GB413840A (en) 1933-05-02 1933-05-02 Improvements in and relating to electrical "pick-ups" for gramophones

Country Status (1)

Country Link
GB (1) GB413840A (en)

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