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> Headphones, why 2.5mm? found 2.5->3.5 adapters
yodabob
post Apr 3 2004, 06:48 PM
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OK, so here's another "weird" thang. The headphone jack on the SL6000 is a 2.5mm, not a 3.55mm which is the internationally recognized freakin' standard. I guess you could pound it in with a ball peen hammer, which I'm tempted to do, but there is an adapter available. Apparently the Treo 600 uses the same f****d up size, so here's a link to the stupid thing. Aaaarrrggghhhh !

http://www.handspring.com/products/Product...jhtml?id=410006
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smammon
post Jun 2 2004, 04:28 PM
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Well, seeing as we have some intelegence in the hardware here it would seem to just depend on the software. Considering what computers do it's not really a huge leap that they could switch what's connected to one or two conductors on a jack based on what software is running...

Heck, even with my amaturish "understanding" of electronics and audio signals I'd think that at headphone level audio (at most) you don't even have to make it switch. Logically, one conductor must be both mic input and a channel output so just cap (ok probably a bandpass filter since it's audio) the outupt side so you aren't driving that with mic audio. You could always let the output go to the mic side. Won't have any effect unless there is software attempting to record it. Might even be used as a kind of mixer to lay music behind a voiceover...

Just to prove it to myself I just tried it all again. Plugged in a $10 cellular headset and recorded a voice memo - then played it back. Pulled that out and inserted my radioshack adapter and stereo headphone (without closing the voice memo app) and launched the media player. Then proceded to listen to Clapton in stereo whilst launching Hancom and opening a file. The music didn't even skip - and that is something my 1.7gHz Windoze box can't seem to manage. biggrin.gif
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yodabob   Headphones   Apr 3 2004, 06:48 PM
yodabob   Here's a Radio Shack part# for the required headph...   Apr 4 2004, 12:31 PM
mk500   Uh oh, this reminds me of the sound issue with the...   Apr 4 2004, 02:50 PM
chapman   No "uh, oh" is warranted. The SL-6000 is stereo. ...   Apr 4 2004, 05:07 PM
chapman   I just thought I'd add that my cellphone microphon...   Apr 5 2004, 07:38 PM
gab74   Headphones what kind?   May 30 2004, 03:34 AM
zaurusgeek   I'm also looking for info on this jack. The docs ...   Jun 1 2004, 07:11 AM
smammon   It's a fairly standard jack. Plug in a 2.5mm cell...   Jun 1 2004, 03:30 PM
zaurusgeek   How can it be both? A 3 conductor plug requires t...   Jun 2 2004, 10:41 AM
smammon   Well, seeing as we have some intelegence in the ha...   Jun 2 2004, 04:28 PM
zaurusgeek   Well I've done it now too and I'm a believer. I f...   Jun 3 2004, 12:58 PM
redtree   This must be why my Monsoon speakers will only pla...   Jun 4 2004, 08:04 AM
zaurusgeek   Yep, try putting a 50 ohm resistor across each spk...   Jun 4 2004, 12:44 PM
redtree   Finding 50 ohm resistors, not mention the other bi...   Jun 5 2004, 12:48 PM
nevarrie   For the fact that I have already lost my first ada...   Jun 21 2004, 12:02 PM
eji   If you'd prefer an adapter and not earphones, ...   Jan 17 2005, 10:36 PM
Mr.Mole   QUOTE(nevarrie @ Jun 22 2004, 03:02 AM)For th...   Jun 18 2005, 07:10 AM
anmol10   So the SL6000 2.5m has has either, - a stereo aud...   Aug 29 2004, 04:18 AM
dsavard   No, it has both. The switch is automagically done ...   Aug 29 2004, 05:50 PM
dsavard   And for the details (I haven't test this mysel...   Aug 29 2004, 05:54 PM
anmol10   Yup, absolutely right. I saw the impedance post, a...   Aug 29 2004, 06:18 PM
saakmotu   Why Sharp decided to put a 2.5mm jack in the side ...   Nov 8 2004, 10:17 AM
nevarrie   Since I have already lost two adapters I am lookin...   Nov 8 2004, 02:08 PM
GoLinux   After trying a 2.5mm male --> 3.5mm female ada...   Nov 30 2004, 11:00 AM
saakmotu   I got the one from Seidio and it's perfect.. a...   Nov 30 2004, 11:31 AM
GoLinux   Nice, I'll try to make mine look like that ...   Nov 30 2004, 01:18 PM
Stubear   <deleted> Mistaking thought that 6k had the...   Nov 30 2004, 05:27 PM
gramps   Anyone found a good set of headphones for the 6K t...   Dec 3 2004, 04:02 PM
johnw   These are 2.5mm: JAVOeBuds There is a group disco...   Dec 3 2004, 04:33 PM
neuroshock   Greets All, I was Christmas shopping in Office De...   Dec 21 2004, 11:04 PM
saakmotu   Seidio changed the product code and hence the link...   Jan 17 2005, 09:49 PM
speculatrix   I'm now on my second, not quite so broken 6000...   Jul 6 2006, 07:23 AM
koen   QUOTE(speculatrix @ Jul 6 2006, 03:23 PM)I...   Jul 6 2006, 07:40 AM
the_oak   My Javo ebuds have stereo sound with true stereo s...   Jul 6 2006, 10:41 AM


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