Lateral pressure detector for use with a phonograph record playe

Details Lateral pressure detector for use with a phonograph record playe Lateral pressure detector for use with a phonograph record playe

1977-12-12

1980-01-15

Stephan, Steven L.

Undertaking

274 23R, G11B 300

Patent

active

041835379

ABSTRACT:
A pick up lateral pressure detector detachably mountable on the tone arm of a photograph record player, the detector comprising a base detachably mountable with respect to the tone arm, a pivotal member so mounted with respect to the base that the axis of rotation thereof is substantially perpendicular to the surface of the phonograph record, a cantilever so mounted with respect to the pivotal member that it can oscillate with respect to the pivotal member at least in a direction substantially parallel to the phonograph record surface, a reproduction needle mounted on the cantilever adapted to engage the groove of the phonograph record, and indicating means responsive to the rotation of the pivotal member and the cantilever about the axis of rotation of the pivotal member for indicating the lateral pressure of the record groove on the reproduction needle.

REFERENCES:
patent: 3328037 (1967-06-01), Lehmann et al.
patent: 3720796 (1973-03-01), Honma

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