@dimento454 you simply solder the two inductor terminals to a desired length microphone cable and put a plug at the other end, which connects to your preamp/recorder/mixer (minijack/jack/XLR).
It's good soldering practice since the part is fairly forgiving in case it gets a bit too hot. Unlike little electret mic capsules which fry very easily...
@underwood it's been at least 10-15 years ago since I experimented with this, and I can't claim to have gained much knowledge through systematic testing since I was happy with the sonic results very quickly.
I was inspired by Christina Kubisch's electrical walks. I tried both very thin wire gauges, like around 0.1mm or even less, with around 100 to 200 windings on a piece of 4-inch pvc pipe.
I was also gifted a huge roll of 1mm wire at the time, and built a simple 'weaving frame' to make larger diameter antennas like they used to make for radio communications.
These had much less windings but still picked up some very interesting sounds, I think because of their larger diameter. Generally, they seem more 'omnidirectional' than the little ferrite core inductors.
I remember using an inductor calculator at the time:
Some photos of what's left of these experiments here:
/g/MicBuilders/files/DIY%20Inductors
Would some of the ham radio enthusiasts in this group care to chime in? Perhaps they can provide some insights on how to 'tune' these kind of devices.
Despite the fact that we're looking to capture here is the very EMF interference that they're trying to reduce ;-)
D
