Please Help wiring headphone jack - diyAudio
Go Back   Home > Forums > Amplifiers > Headphone Systems
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Headphone Systems Everything to do with Headphones

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 4th July 2010, 11:44 PM   #1
diyAudio Member
Join Date: Jul 2010
Default Please Help wiring headphone jack

I recently have begun a project and am in need of some help. I bought a Radio Shack 274-246 3-conductor 1/8 inch closed curcuit jack and cannot figure out how to wire it.

I'd like to wire it such that the stereo speakers turn off when i plug in my headphones.

There is a wiring schematic on the package (attached) but I dont know what contact numbers to solder which wires to. Can you please help tell me (for example ( right speaker + goes to contact number....): Click the image to open in full size.
  Reply With Quote
Old 4th July 2010, 11:58 PM   #2
diyAudio Member
Join Date: Jan 2008
Location: Carp
with the headphones not plugged in it looks like
amp ( lets say left ) output to pin 5 then out to the speaker on pin 4
amp right output to pin 2 then to the speaker on pin 3
ground on pin 1

now normally when you use headphones connected to an amplifier directly the level is way too loud and you will destroy your headphones. So most amplifier headphone jacks will have something like a 100ohm resistor in series with a 10 ohm resistor. The 100 ohm will connect to the amplifier out and the 10 ohm to ground. You would then connect pin 5 to the junction of the 100 and 10 ohm resistors. The other side of the 10 ohm resistor would go to ground. However if you do this you can no longer have the speakers connected thru the headphone jack. That is one reason why if a power amp has a headphone jack it also has a speakers on off switch. You may have to adjust the 10 ohm resistor value up or down depending on your headphones.
  Reply With Quote
Old 5th July 2010, 12:12 AM   #3
diyAudio Member
Join Date: Jul 2010
So, is there any way to protect my headphones that will still take advantage of the "switch" ?
  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
1/4 Headphone Jack Wiring mwood00 Headphone Systems 10 26th January 2011 05:38 PM
Need help with headphone jack DJelly Headphone Systems 3 22nd July 2009 05:39 PM
breadboard headphone jack mbates14 Headphone Systems 2 9th November 2008 03:11 PM
IEC jack w/fuse -need help wiring soundphreak Parts 2 23rd May 2007 05:43 AM
which is which in a headphone jack? jarthel Headphone Systems 7 15th April 2007 08:52 AM

New To Site? Need Help?

All times are GMT. The time now is 03:39 AM.

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