Wire DC Power Jack for 9V Battery - diyAudio
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Old 28th May 2010, 12:26 AM   #1
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Default Wire DC Power Jack for 9V Battery

I have a PCB which has a spot for a DC power jack, with three pins, but i'd like to use a 9V battery instead. Can anyone help me out on which pins are positive and negative?
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Old 28th May 2010, 03:02 AM   #2
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For some reason my images won't upload, but the 2.5 mm dc jack is center positive. I see that the center connection corresponds with the pin on the back of the jack, so I know where positive lead goes. Does that mean the other two pins should be negative? And would you recommend a different power source than 9V? The chip has an operating voltage of 2.4 to 5.5V. I'm using the 120 Second Voice Recorder Module found here: http://www.electronics123.com/s.nl;j...c=8&category=2
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Old 28th May 2010, 04:40 AM   #3
jleaman is offline jleaman  Belgium
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Quote:
Originally Posted by BubbaGump View Post
For some reason my images won't upload, but the 2.5 mm dc jack is center positive. I see that the center connection corresponds with the pin on the back of the jack, so I know where positive lead goes. Does that mean the other two pins should be negative? And would you recommend a different power source than 9V? The chip has an operating voltage of 2.4 to 5.5V. I'm using the 120 Second Voice Recorder Module found here: http://www.electronics123.com/s.nl;j...c=8&category=2
should be in the instructions. If not ask them for the instructions.
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