melbajoe
Forum Supporter
I picked up a pair of older minelab excal headphones that were working but the outer sheathing was gone as it entered the headphones. I bought a new cable and spliced the wires inside the cup, epoxied everything and moved on to the other end where i wanted to hook it to my nox 800. I had previously made a set of water proof ear buds for the nox which worked well but as the wires were so thin and they really didn't seal any outside sound I went for these. Here's the issue-after soldering the wires to a 3.5mm male jack-THEY DON"T WORK!! I inserted the jack into my phone and it works?? Can't understand it-only thing that comes to mind is maybe these headphones have too much impedance for the output of the Nox. If this is the case I might have a pair of headphones for sale
Any suggestions? Thanks in advance. Joe
Any suggestions? Thanks in advance. Joe
The cable from the headphones has 5 wires red,blk,blue,white and yellow as well as a unshielded copper. Looking at the piezo in the headphone it doesn't look like the blue is used. seems at the end that went into the excal the red and white were together as were the black and yellow. Now there are only 2 connections on the jack so -simply put I don't know how to use your diagram. I think I can see which contact on the jack goes where (tip or other) but as far as + or - beats me. Thanks for looking. Joe Oh and I did try both wires at each contact. Update: I reexamined the end cap from original cable and it seems there are two pieces that the four wires go into. 1 appears to be a capacitor. I’m thinking now the signal was amplified before going out to the headphones. If that’s the cas these headphones are worthless 
