ONE NEW old stock Amphenol 78-S4S 4 pin miniature microphone, molded speaker Jack (mates with Amphenol 91-MPM4L and 71-4S). High quality compact connector with pin circle diameter of 0.416" and  0.1" OD pin contacts for vintage radio, stereo and other equipment.  Phenolic element with nickel plated brass prongs. Polarized by pin configuration. Rated at 500Vrms and 5Amp.  

This listing is for connector jack alone with NO RETAINER CLIP RING

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