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MKS 250B-1-A-SPPC Pressure Flow Controller
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Western Electric KS-19522 L2 Recorder Coupler / Telephone Recording Device MKS 250B-1-A-SPPC Pressure Flow ControllerWestern Electric KS 19522 L2 Recorder Coupler Telephone Recording Device Condition: Used; Description: As pictured: KS 19522L1 recorder coupler, also known as Voice Connecting Arrangement RDL. These found wide use in radio stations before the advent of digital broadcasting, usually for recording phoned in reports from field reporters. They were quite sophisticated for their time, and they provide all the answer announce record warning tone logic of a
