The Clansman radio system was introduced at the same time as Britain was going through the Cold War and the fears of nuclear armageddon were particularly acute. They therefore needed a way of integrating the radio system with the respirator then in use. The Clansman respirator microphone clipped to the front diaphragm of the respirator with a plastic adaptor and a cable ran back to the standard headphones where a special port was provided to plug the microphone into:
I haven’t picked up the adaptor yet so I can’t recreate this full set up for you, we can however look at the microphone itself:
The microphone is in the large black section and an interupted thread is used to attach it to the adaptor. The microphone itself is red and green:
The opposite end of the microphone cable has a male three pin socket:
The NSN number for the microphone can be seen printed around the connector. A label is fastened round the cable itself identifying the component:
To use the microphone, firstly, the Respirator (Gas Mask) is put on. Secondly, the Headset is put on. Thirdly, the Respirator Microphone is connected to the small socket on the side of the Headset, and affixed to the front of the Respirator. Finally, the Headset Micrphone Boom is then stored vertically, out of the way.