Very lightweight SOTA microphone

I have been looking for an alternative to the rather bulky and heavy Elecraft MH3 handheld microphone for quite some time. Since I mainly operate CW, the solution could be somewhat improvised.
Inspired by an article about a very light microphone in the SOTAreflector, I started the following mini-project:

A headset from my Baofeng UV-5R was available, lying around unused. The aim was to replace its weird dual plug with a simple 3.5 mm stereo plug and change the wiring so that it could be used with the KX3. The tiny speaker I would simply trim as I’m already using earbuds for my activations.

UV-5R-HS

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5 to 28 MHz Random wire antenna – 12.8m (42 ft)

Some time ago I had an S2S-QSO with N1ZF. In the following e-mail contact we exchanged information and photos about the antennas used for this QSO. This is when I became aware of the „Random Wire Antenna“ Paul had successfully used.

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