Tape end alarm for tape recorder

Details Tape end alarm for tape recorder Tape end alarm for tape recorder

1977-12-15

1979-11-06

Wolff, John H.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 741, G11B 1506, G11B 2330

Patent

active

041737733

ABSTRACT:
A tape end alarm is provided for a tape recorder which includes a changeover switch for selectively connecting an amplifier with a microphone during a record mode and with a magnetic head during a playback mode. The alarm comprises an alarm oscillator which is connected with the amplifier through the changeover switch during a record mode, and an alarm switch adapted to be closed in response to the detection of the end of a running tape being reached for activating the alarm oscillator. In this manner, an alarm is produced only during a record mode when the end of a running tape is reached.

REFERENCES:
patent: 3497635 (1970-02-01), Schneider
patent: 3562441 (1971-02-01), Bretschneider
patent: 3566132 (1971-02-01), Walker
patent: 3660810 (1972-05-01), Yoshii
patent: 3694585 (1972-09-01), Goldner
patent: 3818502 (1974-06-01), Chien et al.
patent: 4003093 (1977-01-01), Satoh
patent: 4005486 (1977-01-01), Satoh

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