AN ELECTRICAL CONTACT FREE MICROPHONE ATTACHMENT FOR A FLIP-TYPE RADIO PHONE

摘要

An electrical contact free microphone attachment for a flip-type radio phone which has a flip, a microphone mounted in said flip, a main set, an audio circuit installed in the main set, and a connecting device for connecting the flip with the main set. The invention comprises a transformer having a primary coil, a secondary coil and a core. The primary coil is arranged in the flip to connect with the microphone. The secondary coil is arranged in the main set to connect with the audio circuit. The core is fixedly arranged in an axial hole formed in the connecting device.