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.)
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 filedfiledCritical
Priority to JP2850073ApriorityCriticalpatent/JPS51122405A/ja
Publication of JPS51122405ApublicationCriticalpatent/JPS51122405A/ja
Publication of JPS5340441B2publicationCriticalpatent/JPS5340441B2/ja
H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
H04R11/00—Transducers of moving-armature or moving-core type
H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously