| 摘要 |
PURPOSE: The created in the record disc and cartridge to destroy the audio sounding generating the earthquake outputs according to the sound volume in the bass speaker only the severe acoustic vibration. CONSTITUTION: The magnetic tracks of the CD disc and record disc are mixed without the error of one inch into the top and bottom. The latch(2) of U character shape is formed in the record disc head(5) and CD disc head(8). The pre-amp of audio is measured at pentalocular with the scope. It is connected to the place which has to destroy where the record cartridge(6) most manies. |
