n. optophone
光录声机 photographic sound recorder
光学录声机 optical sound recorder
声光接收机 acousto-optic receiver
可发光发声仿真手机 luminous and sound-sounding simulated mobile phone
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2个放映机头,用于桌式电影摄影机,1个电子光声头,1台煤油弧光灯,1个滑线电阻,1台幻灯机,1个印片机箱,1个暗房照明灯(煤油),均未检测。
2 projecting heads for table cinematographs, 1 optical sound head, 1 carbon arc projection lamp, 1 slide projector and more. All untested.
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