Comments on: Parts: 3.5mm stereo audio jacks http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/ Fresh hacks every day Fri, 10 Feb 2012 16:05:53 +0000 hourly 1 http://wordpress.com/ By: Mike Lachance http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-81461 Tue, 14 Jul 2009 05:14:40 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-81461 I have been looking all round and I can find it. I am wondering where I can get a 3.5mm phone jack (stereo) double open circuit/isolated switching “make” circuit.

Refer to: http://www.switchcraft.com/products/pdf_files/jack-65_schematic.pdf (drawing XX)

Thank you

]]> By: lwr http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-47922 Tue, 28 Oct 2008 08:26:44 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-47922 @andygondorf:
That’s a neat idea. If you wanted to make it harder to defeat, I guess you could run some kind of serial protocol over it and query an encryption key embedded in a micro in a headphone jack.

Or (analog and maybe more simple) put 3 resistors between the 3 jack contacts and use an op-amp circuit to detect that the resistor values are the correct ones for your particular key.

]]> By: andygondorf http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-46550 Sun, 19 Oct 2008 17:38:30 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-46550 @lwr:
I’ve used the passthrough contacts connected to a relay as an easy and unconventional motorcycle immobiliser.

Stick the socket in an unobtrusive place on your bike/car dashboard, wire it into the ignition somewhere appropriate and the vehicle won’t move without a headphone plug inserted.

Not hi-tech, but also not an easy to recognise system for most car thieves, therefore not easy to defeat.

]]> By: cde http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45700 Tue, 14 Oct 2008 21:46:30 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45700 @ Twisted, you can check car audio/video places. I dd’d a 4 conductor plug to 3 rca JACKS, with weather proof cap from one once. You can go in and see if they have that.

]]> By: twistedsymphony http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45678 Tue, 14 Oct 2008 19:41:14 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45678 @lwr – using this as a mini RS232 connector is an awesome idea, I can’t believe I didn’t thing of that, and I’m even working on a few projects where I needed a small sized RS232 connector!

@cde – yes I know that 4 conductor to RCA are available in a lot of places (not my dollar store, though, already checked) but that’s not what I was looking for.

4 conductor to 4 conductor patch cables seem rare as do 4 conductor jacks for projects, as do solder-able 4 conductor plug ends for custom cables.

]]> By: MicrosoftBOB http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45672 Tue, 14 Oct 2008 18:20:38 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45672 Looks like it’s the same footprint, and even manufacturer too!

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=CP1-3515SJTR-ND

]]> By: MicrosoftBOB http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45671 Tue, 14 Oct 2008 18:14:49 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45671 They have 43,200, so supply isn’t a problem!

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=CP1-3515SJTR-ND

]]> By: cde http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45663 Tue, 14 Oct 2008 17:11:21 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45663 4 Conductor 3.5mm jack to 3 rca cables are available at your local dollar store.

]]> By: lwr http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45641 Tue, 14 Oct 2008 12:56:16 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45641 As well as audio and power connectors, I’ve been known to use these as low profile RS232 connectors (3 sections = Tx, Rx and Gnd).

Anyone else used these for something novel?

]]> By: ryan http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45603 Tue, 14 Oct 2008 03:42:05 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45603 http://www.allelectronics.com/make-a-store/category/190050/Connectors-Plugs-and-Jacks-/3.5mm/1.html

they aren’t audiophile grade or anything, but they are inexpensive and they work. :)

]]> By: twistedsymphony http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45566 Mon, 13 Oct 2008 23:47:28 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45566 PUNiSH3R, Thank you very much for that ^_^

]]> By: Ken http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45551 Mon, 13 Oct 2008 19:47:35 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45551 Zach,

It’s so your device can behave differently when there’s something plugged into the jack. For example, automatically muting speaker output if you plug in headphones.

]]> By: PUNiSH3R http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45549 Mon, 13 Oct 2008 19:10:57 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45549 Four conductor plugs:

Available from Mouser.com

Part # 171-7435-EX 3.5mm 4 Conductor Plug

Part # 171-7425-E 2.5mm 4 Conductor Plug

http://www.mouser.com/Search/Refine.aspx?N=4206622+4294758968+4294728630+4294635164&Ns=P_Product|0||P_SField|0

]]> By: aonomus http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45548 Mon, 13 Oct 2008 19:08:43 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45548 It would be nice to have part #’s on digikey/mouser for the popular ones, through hole parts that match the standard 0.1″ grid of holes in a perfboard/breadboard.

Also part numbers for ones with screw collars, both metal jack body and plastic jack body (ie: sleeve isolated from case ground, and sleeve connected to case ground).

]]> By: twistedsymphony http://hackaday.com/2008/10/13/parts-35mm-stereo-audio-jacks/comment-page-1/#comment-45544 Mon, 13 Oct 2008 18:22:20 +0000 http://hackadaycom.wordpress.com/?p=3937#comment-45544 along with my last post here is the pinout for 4 section connectors on the iPod, Zune, Camcorders and other devices:
http://www.anythingbutipod.com/archives/2006/11/microsoft-zune-av-cable-pinouts.php

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