Wiring mono(2) to stereo - diyAudio
Go Back   Home > Forums > Design & Build > Construction Tips
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Construction Tips Construction techniques and tips

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 12th October 2009, 09:36 PM   #1
Hengy is offline Hengy  Canada
diyAudio Member
Join Date: Oct 2009
Location: Canada
Question Wiring mono(2) to stereo

First of all, this is to do with my cell phone, but completely relevant to this forum, because it has to do with wiring audio...

I have a cell phone with a proprietary headphone connector. It has a mini USB on one end, a mic in the middle, and two headphones. I live in Canada, and getting an adapter with a 3.5mm plug is impossible. I've been trying for 2 weeks. the headphones on the included adapter hace since broken, and i want to use my own headphones.

My question is, if i acquire a 3.5 plug from an electronics store, how would I wire the two headphones into the plug so i could use my own headphones? each headphone has it's own wire coming from the mic. I assume there are two wire in each (+/-) for each earbud, but the 3.5 plug has 3 terminals.

Any help would be much appreciated!

  Reply With Quote
Old 12th October 2009, 09:49 PM   #2
diyAudio Moderator Emeritus
Iain McNeill's Avatar
Join Date: Oct 2007
Location: Santa Cruz, California
First of all, welcome to the forum.

A bit more info would help as I'm a bit confused by what you're trying to do.
do you need to replace a miniUSB plug (M) to 3.5mm jack (F) adapter? You want to plug your stereo phones in instead? Do you need to have the mic work as well?

What plugs into what?

In a 3wire headset you have mic, spkr, gnd (T/R/S usually but not always) The two speaker wires are commoned (L & R in parallel), ground is shared w/ mic.
  Reply With Quote
Old 12th October 2009, 09:54 PM   #3
Hengy is offline Hengy  Canada
diyAudio Member
Join Date: Oct 2009
Location: Canada
I think i have my plugs and jacks mixed up!

It is a miniUSB plug adapter, with a mic in the middle, and it then has two wires, and one go to each earbud. I want to take those two wires (obviously left and right) and wire them into a 3.5mm jack, so i can plug any headphones into it.
  Reply With Quote
Old 15th October 2009, 06:01 AM   #4
diyAudio Member
Join Date: Oct 2009
Default Common Ground...

I believe what you will find if you splice stereo headphones w/a female 3.5mm adpt. will be left + , right + , and ground to be common. So tie the negatives (-)
together, and separate left and right positives (+).
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mono to stereo input wiring question Keskin Class D 8 1st March 2009 11:33 AM
Stereo/Mono 4x12" Marshall cabinet wiring tone1963 Instruments and Amps 5 5th January 2008 09:17 AM
stereo/mono WIRING CG_25 Instruments and Amps 23 13th August 2007 08:09 PM
Stereo/mono wiring kinundrum Krnichin Multi-Way 12 25th May 2006 09:44 AM
stereo to mono janey Solid State 3 12th December 2001 05:57 AM

New To Site? Need Help?

All times are GMT. The time now is 05:21 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2