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| Extending a headphone jack from a decased PC Speaker amp? |
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| ARTIFACT:
I want to add a headphone jack on my cab. For my cab audio, I have a de-cased a PC speaker amplifier which works very well. It has an existing headphone jack on the amplifier PCB... Is this as simple as de-soldering the existing jack from the PCB and reconnecting it using long wires? I'm afraid simply plugging a long male jack > female jack extension will make the amp act as if a headphone was plugged all the time (although I admit I haven't tried that yet) Finally, how would you mount it on a cab built with 3/4" Plywood (birch)? I have seen fancy mountable jacks with built-in brackets, but I think they are too much $$$ and it seems that a DIY solution could be possible here - reusing the existing jack component... WHAT DO YOU THINK? THANKS FOR YOUR INPUT! Click here for a very large (9 MP) version of this image. |
| ARTIFACT:
FYI, I read this article on the archives for Oscar Controls, but it doesn't exactly apply to my problem, or it doesn't show the amp unit and how that's soldered: http://web.archive.org/web/20060508195633/http://www.oscarcontrols.com/volume/ Thanks. I did use search but mainly found pointers to the article above. I imagine that this is something folks do all the time, using a cheap PC speakers set, so can't wait to hear the input! :) |
| johnnya:
Admittedly, I've never done something like this, but I think you could do a jack extension. I don't think the headphone jack will engage (thereby disengaging the speakers) unless you actually have headphones hooked up. |
| BobA:
To extend a headphone jack you have to extend all the connections to the jack via long wires. There is a connection that is controled by the plug when you place it in the jack. It disconnects the speakers when a plug is inserted. Beacuase of this you cannot use a headphone cord extension. It might be easier to get another stereo headhone jack and extend the wires from the pcb to it. This way you can solder under the PCB on the tabs where the existing jack is soldered in place and you do not have to remove the existing jack. Since it is a pcb type the solder tabs will be very small on the jack. edit: As per PBJs post I checked this and you do have to remove the existing jack because it provides the circuit for the speakers and if you do not remove it the circuit will be closed and will not open when you plug into the new jack. Still you can get a jack with solder tabs for wires that is easier to work with then the original pcb jack. In essence you are remotely mounting the jack. |
| ARTIFACT:
thank you so much for posting all f this great info guys this is going to be fun :) |
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