发明授权
- 专利标题: Amplifier system
- 专利标题(中): 放大器系统
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申请号: US31471872申请日: 1972-12-13
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公开(公告)号: US3825847A公开(公告)日: 1974-07-23
- 发明人: HUGHES D , SHERWOOD H
- 申请人: LORRAINE IND INC
- 专利权人: Lorraine Ind Inc
- 当前专利权人: Lorraine Ind Inc
- 优先权: US31471872 1972-12-13; US9546670 1970-12-07
- 主分类号: G11B5/027
- IPC分类号: G11B5/027 ; H03F3/18 ; H03F3/30
摘要:
A cassette recorder amplifier system with a two stage preamplifier having direct current forward feed from the first to the second stage and direct current feedback from the second to the first stage to cause the second stage to operate without overloading as an input stage. The power amplifier has high direct current feedback and lower alternating current feedback for better linearity and more gain. Switch circuits and extra input terminals provide for recording on recording, aural monitoring of recording, and higher speed on fast forward and reverse.
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