| 发明名称 |
FET Amplifier with protective circuit |
| 摘要 |
The present invention relates to an acoustic transducer including an improved electret assembly mounted in an improved case and having an electronic amplifier circuit comprising FET transistors. The electronic circuit further includes means for protecting the FET transistors against current surges.
|
| 申请公布号 |
US4151480(A) |
申请公布日期 |
1979.04.24 |
| 申请号 |
US19770820404 |
申请日期 |
1977.08.01 |
| 申请人 |
INDUSTRIAL RES PRODUCTS INC |
发明人 |
CARLSON, ELMER V;KILLION, MEAD C |
| 分类号 |
H03F1/52;H04R19/01;H04R25/00;(IPC1-7):H03F3/18 |
主分类号 |
H03F1/52 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
