IT1119593B - Reproducer using four circular coaxial magnetic tracks - Google Patents

Reproducer using four circular coaxial magnetic tracks

Info

Publication number
IT1119593B
IT1119593B IT69344/79A IT6934479A IT1119593B IT 1119593 B IT1119593 B IT 1119593B IT 69344/79 A IT69344/79 A IT 69344/79A IT 6934479 A IT6934479 A IT 6934479A IT 1119593 B IT1119593 B IT 1119593B
Authority
IT
Italy
Prior art keywords
preamplifiers
reproducer
magnetic tracks
coaxial magnetic
circular coaxial
Prior art date
Application number
IT69344/79A
Other languages
Italian (it)
Other versions
IT7969344A0 (en
Inventor
Watanabe Kazunari
Yoshinari Yukiyoshi
Original Assignee
Shinano Kikaku Co 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 Shinano Kikaku Co Ltd filed Critical Shinano Kikaku Co Ltd
Priority to IT69344/79A priority Critical patent/IT1119593B/en
Publication of IT7969344A0 publication Critical patent/IT7969344A0/en
Application granted granted Critical
Publication of IT1119593B publication Critical patent/IT1119593B/en

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

The magnetic reproducer, e.g. for an educational audio-visual device, has preamplifiers connecting to heads for playback from required portions of a magnetic sheet carrying audio information on one side and visual information on the other, e.g., on four circular tracks each side. The preamplifiers are selectively connected to a main amplifier in an output stage by light sensors includes in the preamplifiers. LEDs are actuable by external action to direct light onto the light sensors of required preamplifiers. The system produces output with high S/N ratio.
IT69344/79A 1979-12-06 1979-12-06 Reproducer using four circular coaxial magnetic tracks IT1119593B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT69344/79A IT1119593B (en) 1979-12-06 1979-12-06 Reproducer using four circular coaxial magnetic tracks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69344/79A IT1119593B (en) 1979-12-06 1979-12-06 Reproducer using four circular coaxial magnetic tracks

Publications (2)

Publication Number Publication Date
IT7969344A0 IT7969344A0 (en) 1979-12-06
IT1119593B true IT1119593B (en) 1986-03-10

Family

ID=11311923

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69344/79A IT1119593B (en) 1979-12-06 1979-12-06 Reproducer using four circular coaxial magnetic tracks

Country Status (1)

Country Link
IT (1) IT1119593B (en)

Also Published As

Publication number Publication date
IT7969344A0 (en) 1979-12-06

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