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GB609247A - Improvements in and connected with crystal pick-ups - Google Patents

Improvements in and connected with crystal pick-ups

Info

Publication number
GB609247A
GB609247A GB734346A GB734346A GB609247A GB 609247 A GB609247 A GB 609247A GB 734346 A GB734346 A GB 734346A GB 734346 A GB734346 A GB 734346A GB 609247 A GB609247 A GB 609247A
Authority
GB
United Kingdom
Prior art keywords
crystal
ups
pieces
metal plates
plastic housing
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
GB734346A
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.)
HORACE GUSTAVE MENAGE
R A ROTHERMEL Ltd
Original Assignee
HORACE GUSTAVE MENAGE
R A ROTHERMEL Ltd
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 HORACE GUSTAVE MENAGE, R A ROTHERMEL Ltd filed Critical HORACE GUSTAVE MENAGE
Priority to GB734346A priority Critical patent/GB609247A/en
Publication of GB609247A publication Critical patent/GB609247A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

609,247. Piezo - electric instruments. ROTHERMEL, Ltd., R. A., and MENAGE, H. G. March 8, 1946, No. 7343. [Class 40 (iv)] The crystal c of a gramophone pick-up is mounted in a plastic housing a and is screened from outside interference by the earthed metal plates b located within the housing. One end of the crystal is clasped between the forked end d<SP>1</SP> of the needle holder d through interposed rubber pieces e. The other end is held between the metal plates b by pieces of rubber h cemented on to the crystal. The metal screen may be moulded into the plastic housing.
GB734346A 1946-03-08 1946-03-08 Improvements in and connected with crystal pick-ups Expired GB609247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB734346A GB609247A (en) 1946-03-08 1946-03-08 Improvements in and connected with crystal pick-ups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB734346A GB609247A (en) 1946-03-08 1946-03-08 Improvements in and connected with crystal pick-ups

Publications (1)

Publication Number Publication Date
GB609247A true GB609247A (en) 1948-09-28

Family

ID=9831291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB734346A Expired GB609247A (en) 1946-03-08 1946-03-08 Improvements in and connected with crystal pick-ups

Country Status (1)

Country Link
GB (1) GB609247A (en)

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