Mic Headphone Jack Wiring

Old headsets create a sense of annoying surroundings and they have two wires one for mic input and other for headset input.

Mic headphone jack wiring. On the other hand the headphone which is made for one jack audio input comes in to reduce the number of wires. This headset plug design was in common usage in at least a couple of decades before the microphone plug came along. It is also known by other names like phone jack audio jack aux input etc. This is so you can test the headphones with alligator clips to be sure you are connecting the wires correctly.

More connection leads to more wires and it becomes annoying sometimes. Remove the above plastic casing and you will see the pins of the jack as shown in the images above. This is because high end headphones will have 2 wires per channel equaling 4 wires. The headset plug diameter was only a two circuit plug sleeve and tip and 0 25 in diameter.

Now use multi strand wires to solder with the pins and then again cover it with the plastic casing. Burn the resin off with some solder and tin the wires. For using a 3 5mm audio male jack for your projects or prototypes you have to solder wires with the pins of the jack. The basic design for this style of connector has roots in the design for a plug and jack set used with headsets.

At this point you should have 4 copper wires exposed.