| 摘要 |
<p>The phonograph record player has the usual turntable with a small dia. spindle and has a first mode for playing a first type of record having a small spindle hole at a first speed, and a second mode for playing a second type of record at a second speed, the second type of record having a large spindle hole and requiring an adapter to adapt the record to the small dia. spindle, the player having a lever for switching the player from the first mode to the second mode. It comprises an annular adapter having an outer dia. to fit the large spindle hole and an inner dia. to fit the small dia. spindle for the second type of record and has magnetic incorporated devices in it.</p> |
