Subject:
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Re: Sign of center pin on power adaptor
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 10 Jul 2007 17:54:28 GMT
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Viewed:
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13602 times
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Ross Crawford wrote:
> In lugnet.robotics.rcx, Tom Lohre wrote:
> > I am looking for the sign of the center pin on the RCX 1.0 power adaptor plug. I
> > have a DC 9v 200ma transformer and want to plug it into the RCX but I do not
> > know what the sign is on the center of the plug. It looks like the rush on
> > buying the old RCX’s evaporated with the end of the school year. I imagine all
> > will be going to the new NXT. That will sure make the old units cheap. My Lego
> > robot painter is coming along: http://tomlohre.com/lego.htm.
>
> The RCX 1.0 uses a 10V AC supply. It has a bridge rectifier, so you can use DC
> 9V (orientation doesn't matter). But I wouldn't recommend it as there have been
> reports of burnt out rectifiers from people doing that.
It's the same PSU as used for the 9V train controllers.
--
Dean Earley, Dee (dean@earlsoft.co.uk)
irc: irc://irc.blitzed.org/
web: http://personal.earlsoft.co.uk
phone: +44 (0)780 8369596
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Message has 2 Replies:
 | | Re: Sign of center pin on power adaptor
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| (...) I now have a Dynamic Instruments 16VAC 375mA, AT&T AC 9V 800mA, and a Black & Decker 9V 200mA from a Dust Buster but it does not say if it is DC or AC, I am assuming AC. Which one should I use? I am hoping the AT&T but the 800mA makes me a (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
| | | Re: Sign of center pin on power adaptor
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| (...) The one used for the RCX may be, but the NXT power supply is sold as a different item, and is listed as a 10VAC adapter vs. the 9VAC adapters used by trains and various other systems. Not that it matters unless you also buy the Li-Ion battery (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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