9/10 times the wire with the white on it is positive, but to be absolutely certain you need to pull out your DVM (digital voltmeter), set it for DC voltage (if it was AC it wouldn't matter which was what) and test it and see.
If you dont have a DVM (which is an absolute necessity in working with anything electronic from cords to fuses to power supplies), you need to have one. Sears has a really nice autoranging DVM for maybe $30 although you can pick up a decent one at almost any hardware store...
--- In AN1x-list@yahoogroups.com, audiomad99@... wrote:
>
>
> hi,...does anyone know (on a wall wart type power supply ) regarding the 2 wires coming from the psu whether the black wire or the other wire that has a white line printed on it is the + or - line ??
> i'm splicing a psu plug, to power up an eq module.
> thanks ahead of time
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Jeff <jf.serviere@...>
> To: AN1x-list@yahoogroups.com
> Sent: Mon, Mar 29, 2010 1:24 pm
> Subject: Re: [AN1x] DC in
>
>
> The stock power supply is rated at 12V DC- 700 mA , positive tip.
> If you use another one, 700 mA should be considered as a minimum, but
> don't exceed the voltage rating and change the plug for the right type.
> Similar supplies (and the right connector) can be found in electronics
> shops, supermarkets, computer shops...
> Cheers.
> J.F.
>
>
> jadestarbaby a écrit :
> >
> > Hi,
> >
> > I am wondering whether anyone knows whether the DC in for the AN1x ha
> > a positive tip or negative tip. It does not say on the outside of the
> > AN1x and i also could not find this info in the manual. Any help would
> > be appreciated.
> >
> > Robert H
> >
> >
>
>
>
>
>
> ------------------------------------
>
> Community email addresses:
> Post message: AN1x-list@yahoogroups.com
> Subscribe: AN1x-list-subscribe@yahoogroups.com
> Unsubscribe: AN1x-list-unsubscribe@yahoogroups.com
> List owner: AN1x-list-owner@yahoogroups.com
>
> Shortcut URL to this page:
> http://groups.yahoo.com/group/AN1x-list
>
> The AN1x Control Synthesizer FAQ::
> http://www.geocities.com/jondl_2000/an1x_faq/an1x_faq_toc.htm
> Yahoo! Groups Links
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>