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Gear / Technical Help => Remote Power => Topic started by: gratefulphish on January 24, 2007, 04:19:56 PM

Title: Reversing Polarity for R-4 Pro
Post by: gratefulphish on January 24, 2007, 04:19:56 PM
Apparently, both the R-4 and R-4 Pro share the same reverse polarity issue, with pin negative and sleeve positive.  What do people do to reverse polarity using common Wally batteries or similar lithium ions.  Do I have to hack the cable, or can this be done with some sort of Rat Shack plug? 
Title: Re: Reversing Polarity for R-4 Pro
Post by: poorlyconditioned on January 24, 2007, 04:27:29 PM
If you have an adaptaplug, you can turn it around.  Check polarity with a voltmeter.

If you've got a fixed adapter, yes, just hack the cable.

One trick I do is put a bit of red shrinkwrap on the plug if it's polarity if reversed.  I have a few wallwarts that were either reversed already, or hacked by me.  So I "flag" them with a red band around the plug to indicate they are for UA5, R4, etc.

  Richard
Title: Re: Reversing Polarity for R-4 Pro
Post by: gratefulphish on January 24, 2007, 04:29:05 PM
Off to Rat Shack for an adaptaplug. Thanks. Steve +T
Title: Re: Reversing Polarity for R-4 Pro
Post by: BayTaynt3d on January 25, 2007, 02:14:43 PM
Look around somewhere here (TS) for what tips you need for the adaptaplug before you head off to ratshack. It's the exact same setup you use for a UA5, so look for posts that discuss UA5 powering with DVD batteries. This is what I use BTW, works like a charm.
Title: Re: Reversing Polarity for R-4 Pro
Post by: justink on January 25, 2007, 03:22:59 PM
Adaptaplug "M" and "B" if i remember correctly... and i bought/did this last week.

Both plugs and cable cost a total of ~$17

-j
Title: Re: Reversing Polarity for R-4 Pro
Post by: gratefulphish on January 25, 2007, 10:41:17 PM
It's actually two M plugs.  It is quite a frankencable right now. Need to get one made.  Oh Ed??????
Title: Re: Reversing Polarity for R-4 Pro
Post by: OFOTD on January 25, 2007, 11:09:56 PM
Your answer lies here.   M & B

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