Invention Grant
- Patent Title: Amplifier system
- Patent Title (中): 放大器系统
-
Application No.: US31471872Application Date: 1972-12-13
-
Publication No.: US3825847APublication Date: 1974-07-23
- Inventor: HUGHES D , SHERWOOD H
- Applicant: LORRAINE IND INC
- Assignee: Lorraine Ind Inc
- Current Assignee: Lorraine Ind Inc
- Priority: US31471872 1972-12-13; US9546670 1970-12-07
- Main IPC: G11B5/027
- IPC: G11B5/027 ; H03F3/18 ; H03F3/30
Abstract:
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.
Information query
IPC分类: