 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
nuckollsr(at)cox.net
Guest
|
 Posted: Mon Oct 09, 2006 11:38 am Post subject: Small audio jack question |
 |
|
At 02:49 PM 10/9/2006 -0400, you wrote:
| Quote: | I bought an Intercom that allows two music inputs (one for the kids, one
for the grownups). I bought small sockets from Radio Shack.
They expect the usual "tip-ring-sleeve" 3-contact arrangement. But looking
at the male jack on an electronic device I own, it has 4 contact surfaces
on the male pin.
So what's the forth one for and will I need it?
|
Wondering if you have what's called a "closed circuit" jack
intended to disconnect a "primary" load (like built
in speaker) when the "secondary" load (like headphones)
is plugged in.
A schematic for such a jack is attached. It has a total of
5 connections right and left inputs, right and left outputs,
plus ground.
f6e8ad.jpg
Does this look like it matches your jack? What's the Radio Shack catalog
number for the part you have?
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
| Description: |
|
| Filesize: |
33.28 KB |
| Viewed: |
151 Time(s) |
|
| Description: |
|
| Filesize: |
28.46 KB |
| Viewed: |
149 Time(s) |
|
|
|
| Back to top |
|
 |
Bill Denton
Joined: 10 Jan 2006
Posts: 97
Location: Chicago, IL USA
|
| Posted: Mon Oct 09, 2006 12:19 pm Post subject: Small audio jack question |
|
|
It's not terribly unusual to see a 4-conductor stereo jack/plug wired with
separate grounds for each channel, i.e.
L+
L-
R+
R-
If you need a source for these plugs/jacks, I'll look them up for you...
--
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
