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In Reply to: RE: Zerozone Linear Power Supply posted by Duster on September 26, 2016 at 09:20:48
On a 2-pole microphone jack is pin one the positive?
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Topic: Zerozone DC jack pinout.
Image: To the left: Inside view of Zerozone PSU enclosure. To the right: Rear view of 2-pin male jack with a 2-pole female connector plugged into the jack:
Pin 2 negative (-) is located on the left (blue wire), pin 1 positive (+) is located on the right (red wire).
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This type of jack is called a GX16-2 a.k.a aviation or Cobra microphone jack. I can't find official information, but by visual inspection this is what I found:
For the Zerozone PSU DC output jack, pin 1 is positive, pin 2 is negative.
Another way of determining which pin is which without looking inside the enclosure:
The Zerozone DC jack has a protrusion within the connector entry point oriented at the top for proper polarity. When viewing the DC jack from the *outside of the enclosure*, the right pin corresponds to negative (-), with the left pin being positive (+).
Thanks Duster. I presumed pin one was positive and went ahead and built a cable for the Zerozone LPS. I'll file this info away for reference. After two weeks since ordering it it's finally in transit to the U. S.
pixelphoto (Marvin)
Neutrik speakON NL2MP 2-pole Chassis Mount Jack
Neutrik speakON NL2FX 2-pole Cable Connector
A nice thing about the particular DC jack is it could be easy to upgrade it with a potentially better-sounding DC umbilical interface, since the chassis cut-out for the DC plug is a somewhat large diameter opening, that might accommodate a number of options, including an easy-to-do mod if necessary. I'm interested in trying an inexpensive Neutrik speakON Loudspeaker connector/jack combo, since I find the larger Neutrik powerCON AC plug/connector combo performs very well as an AC power line conditioner/AC power cord interface. The Swiss-made design helps to provide very good, coherent-sounding AC delivery, along with a solid locking mechanism. I've not measured the Zerozone DC jack cut-out dimension, including interior clearances, as of yet.
Neutrik speakON NL2MP 2-pole Chassis Mount Jack:
http://www.neutrik.com/en/speakon/speakon-chassis-connectors/nl2mp
Neutrik speakON NL2FX 2-pole Cable Connector:
http://www.neutrik.com/en/speakon/nl2fx
See link:
Oh goody, I see another project in my future! When my ps arrives I'll be able to measure the jack mounting hole. If it requires enlargement my handy rotary tool will take care of that.
Thanks for the advise and info Duster.
pixelphoto (Marvin)
Perhaps you'll let me know about the cut-out measurement and clearance for the back of the Neutrik jack when inserted into the enclosure area...
You bet I will Duster. Hopefully my ps will arrive sometime next week.
pixelphoto (Marvin)
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