Summary

This thing is a 3D-printed case for push-to-talk (PTT) microphone for the Bitx40 and uBitx QRP radio kits. These radio kits include an electret microphone element and a pushbutton switch that are used in this build. In addition to theses two items, you will also need to purchase one 3.5mm stereo jack**, four M3x10mm screws. This project requires wiring and soldering to connect the microphone, jack and PTT switch. Refer to the provided wiring diagram.

** Note: Stereo jacks come in all shapes and sizes. The stereo jack used here has a 6mm diameter threaded section and an 8mm diameter main section. You will need to find one that meets these specs in order for it to fit into the case.