AU238278B2 - Improvements in or relating to apparatus for recording or reproducing acoustic vibrations provided witha variable acoustic impedance - Google Patents

Improvements in or relating to apparatus for recording or reproducing acoustic vibrations provided witha variable acoustic impedance

Info

Publication number
AU238278B2
AU238278B2 AU55739/59A AU5573959A AU238278B2 AU 238278 B2 AU238278 B2 AU 238278B2 AU 55739/59 A AU55739/59 A AU 55739/59A AU 5573959 A AU5573959 A AU 5573959A AU 238278 B2 AU238278 B2 AU 238278B2
Authority
AU
Australia
Prior art keywords
relating
recording
provided witha
reproducing
vibrations provided
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
AU55739/59A
Other versions
AU5573959A (en
Inventor
Schenkel Gerrit
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of AU238278B2 publication Critical patent/AU238278B2/en
Publication of AU5573959A publication Critical patent/AU5573959A/en
Expired legal-status Critical Current

Links

AU55739/59A 1959-12-16 Improvements in or relating to apparatus for recording or reproducing acoustic vibrations provided witha variable acoustic impedance Expired AU238278B2 (en)

Publications (2)

Publication Number Publication Date
AU238278B2 true AU238278B2 (en) 1960-06-16
AU5573959A AU5573959A (en) 1960-06-16

Family

ID=

Similar Documents

Publication Publication Date Title
AU1797356A (en) Improvements in magnetic sound recording apparatus
AU215092B2 (en) Improvements in magnetic sound recording apparatus
AU238278B2 (en) Improvements in or relating to apparatus for recording or reproducing acoustic vibrations provided witha variable acoustic impedance
AU5573959A (en) Improvements in or relating to apparatus for recording or reproducing acoustic vibrations provided witha variable acoustic impedance
CA524523A (en) Sound recording or reproducing apparatus
AU228846B2 (en) Improvements in or relating to driving devices intended for apparatus for recording and reproducing sound
AU241063B2 (en) Improvements in or relating to an arrangement for operating brakes in sound recording and / or reproducing apparatus
AU239354B2 (en) Improvements in driving mechanisms for sound reproducing apparatus
AU233493B2 (en) Improveawnts in or relating to transducers for use in devices for recording or reproducing groove-shapedregistration tracks
AU4250158A (en) Improvements in or relating to driving devices intended for apparatus for recording and reproducing sound
AU5245459A (en) Improvements in or relating to an arrangement for operating brakes in sound recording and / or reproducing apparatus
CA587058A (en) Sound recording and sound reproducing apparatus
AU234753B2 (en) Record reproducing apparatus
AU6169460A (en) Improvements in driving mechanisms for sound reproducing apparatus
AU216261B2 (en) Improvements in and relating to sound reproducing apparatus
AU223938B2 (en) Improvements in and relating to sound reproducing apparatus
AU233340B2 (en) Improvements in or relating to phonograph pickups
AU5189159A (en) Record reproducing apparatus
AU223449B2 (en) Improvements in or relating to apparatus for driving gramophone records
AU216562B2 (en) Improvements relating to recording and reproducing apparatus
AU2855157A (en) Improvements in and relating to sound reproducing apparatus
AU3028057A (en) Improvements in and relating to sound reproducing apparatus
AU211442B2 (en) Improvements in or relating to devices for reproducing sound
CA507362A (en) Sound reproducing apparatus
AU255983B2 (en) Improvements relating to stereophonic reproducing apparatus