[Chugalug] OT: Anyone of you guys good with electrical circuits?

Jason Brown lists at masterforge.com
Fri Feb 8 15:19:26 UTC 2013


I think I misunderstood "House Jacks"....

--Jason

On 02/08/2013 09:56 AM, Phil Sieg wrote:
> Errr Jason, I am not sure where you got the idea Lynn wanted and AC 
> power plug on the front of her PC?
>
> I read her meaning as a couple of 1/4" phono jacks(?) for an aviation 
> headset that works at funny/different impedance than standard pc audio 
> amplification.
>
> This is what came to mind for me: 
> http://www.crutchfield.com/p_818EF2/HiFiMAN-EF2A.html?tp=48508&kw=&org=pla&nw=g&crv=19722308425
>
> However it only solves the listening side, not the mic side of things, 
> and wont fit in a drive bay.... But the tubes sure would look cool on 
> top of her rig ;-)
>
> Phil Sieg
> President
> SeniorTech LLC / Snapfon
> www.snapfon.com <http://www.snapfon.com>
>
> B: 423.535.9968
> F: 423.265.9820
> M: 423.331.0725
> phil.sieg at seniortechllc.com
>
>
> On Feb 8, 2013, at 9:32 AM, Jason Brown <lists at masterforge.com 
> <mailto:lists at masterforge.com>> wrote:
>
>> So you want mains (110v-120v) standard 3 prong electrical outlets in 
>> a 5.25" drive bay?
>>
>> Possible, but might introduce some noise, it also might not.
>> There is risk involved, but mostly to your computer equipment. If 
>> there is every a short to your case your computer is toast and most 
>> likely every thing in it and attached to it.
>>
>> Since you have limited electrical knowledge I would recommend this route:
>>
>> Buy a cord like this one: 
>> http://www.sears.com/shc/s/p_10153_12605_SPM2407065603P
>>
>> Get a 5.25" bay and front panel, cut out the shape needed, glue the 
>> cord in flush with a glue of your choice.
>>
>> Run the cord out the back of your PC somehow.  You might have a 
>> cutout large enough to pass it through.
>>
>> Install a rubber grommet or other protector around the cord where it 
>> exits the case (Sharp edges, you don't want that cutting into the 
>> extension cord. 
>> http://www.oreillyauto.com/site/c/detail/DOR3/02365/N0282.oap?ck=Search_grommet_-1_-1&keyword=grommet
>>
>> Alternately:
>> If you don't need much power, and want it to only run while the PC is 
>> turned on you could wire in one of these to your 12v Rails:
>> http://www.harborfreight.com/80-watt-continuous-power-inverter-66972.html 
>> (or similar, keep it small < 100 watts).
>>
>> Microphone:
>> Here is some info on wiring electret microphones.
>> http://www.epanorama.net/circuits/microphone_powering.html#basics
>> I am sure someone sells an off the shelf version but I don't have the 
>> time to search for it right now.
>>
>> Good luck, and send us pictures!
>>
>> --Jason
>>
>>
>>
>>
>>
>> --Jason
>>
>> On 02/08/2013 01:59 AM, Lynn Dixon wrote:
>>> I have a pretty nifty project that I have been thinking about doing, 
>>> but its a bit out of my electrical circuit knowledge.
>>>
>>> In a nutshell, I would like to mod one of my 5.25" bays on my PC to 
>>> house jacks that I can plug my aviation headset into.   There is a 
>>> pretty good difference in impedance between aviation headsets and PC 
>>> audio.  There is also a challenge in driving the electret mic in the 
>>> headset using the PC mic input.
>>>
>>> Bonus:  If I can plug this modded panel into my motherboards front 
>>> panel audio input, that would be awesome.
>>>
>>> If anyone of you guys are good with basic electrcal circuits give me 
>>> a shout.  I can spring for dinner / beer if your willing to help. 
>>>  Hell, I will even be president for a Chugalug meeting if we can get 
>>> enough folks together to discuss this :)
>>>
>>> Sorry for the off topic post to the LUG.
>>>
>>>
>>> _______________________________________________
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>>> Chugalug at chugalug.org
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>>
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