2.5mm to 3.5mm stereo jack

Ian Stirling OpenMoko at mauve.plus.com
Fri Apr 25 15:36:38 CEST 2008

Daniel Spies wrote:
> Hi there,
> I wonder if it could be possible to replace the 2.5mm stereo jack with a
> 3.5mm stereo jack. I see no usage for the 2.5mm connector as all headphones
> and all headsets I know have a 3.5mm jack. Therefor I always would have to
> use a adaptor which will probably be annoying in the long term. 
> Someone has a glue if I could replace the 2.5mm connector and slighly
> modify the housing (increase the drill diameter) of the Freerunner? Would
> it fit in?

As I understand the geometry.
Yes, it will just about work.
You will not get it mounted 'properly'.
Unsolder the existing connector, solder leads on, enlarge the hole, 
modify the plastics next to the battery compartment to allow for the 
slightly larger socket. If the new socket is only 3-4mm longer than the 
existing one, then it can be butted against the battery connector.

Apply either epoxy, or hot-melt (I'd use hot-melt) to secure it in place.

I have the tools to do this.
There is no way I'd dream of doing this.
The much simpler solution is to simply remove the 3.5mm plug, and 
replace with a 2.5mm one.

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