AMPHENOL 3 CONTACT FEMALE MIC CONNECTOR CABLE END 91MC3F
AMPHENOL 4 CONTACT FEMALE MIC CONNECTOR CABLE END 91MC4F
AMPHENOL 3 CONTACT MALE MIC CONNECTOR CABLE END 91MC3M1
This is an old Amphenol microphone connector series. The connectors are designed primarily for audio equipment but are used extensively on all types of portable equipment and test equipment.