公开(公告)号：GB2260060B

公开(公告)日：1995-08-23

申请号：GB9220591

申请日：1992-09-30

Applicant: SONY CORP

Inventor： WAJI TOMOHIRO ,  TAKAHASHI KAZUMASA ,  YAMAZAKI SATOSHI ,  YOSHIDA KIICHI ,  KOHNO OSAMU ,  ENOKUMA TOHRU ,  TANAKA EIICHI

IPC: H04R1/00 ,  H01J7/24 ,  H04R1/04

公开(公告)号：GB2260060A

公开(公告)日：1993-03-31

申请号：GB9220591

申请日：1992-09-30

Applicant: SONY CORP

Inventor： WAJI TOMOHIRO ,  TAKAHASHI KAZUMASA ,  YAMAZAKI SATOSHI ,  YOSHIDA KIICHI ,  KOHNO OSAMU ,  ENOKUMA TOHRU ,  TANAKA EIICHI

IPC: H04R1/00 ,  H01J7/24 ,  H04R1/04

Abstract: A microphone includes a vacuum-tube amplifier 3 amplifying an electric signal converted from an acoustic signal and a Peltier effect cooling element 6 in contact with the vacuum-tube amplifier for absorbing the heat generated. The absorbed heat is radiated to the exterior via a heat pipe 7 with cooling fins 8.