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DIY Stompboxes => Building your own stompbox => Topic started by: ghostsauce on April 11, 2010, 10:31:43 PM

Title: Hmm, need help reversing the polarity of a smallstone
Post by: ghostsauce on April 11, 2010, 10:31:43 PM
Well, I just picked up my small stone (sovtek, version 3 --> http://www.pedalarea.com/small_stone.htm )  and I discovered it needs a + tip DC supply.  I have a pedalboard and a voodoo lab pedal + so I have no use for batteries, but the power brick doesn't come with a + tip connector and I don't want to wait 5 weeks to order one and shell out more cash.  Now, my question.. How hard would it be to re-wire the smallstone for - tip, or alternatively, can I just take the - tip connector that came with my pedal power + and cut it, and swap the two wires inside?

I think, judging by my experience with multi adapters, that there's nothing wrong with just swapping the two wires in the dc connector to turn it into + tip, but I'd like to run it by you kind folks.

Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: theehman on April 11, 2010, 10:37:41 PM
Cut and splice will do the trick.
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: ghostsauce on April 12, 2010, 05:56:36 AM
Awesome, thanks :)
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: petemoore on April 12, 2010, 06:17:44 AM
  And a double check to make sure you only went 1/2 way around with the reversal of polarity.
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: ghostsauce on April 12, 2010, 11:35:23 AM
Haha, yeah I will.  It's really just a matter of cutting it and re-splicing it with the opposite wires though eh?
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: StereoKills on April 12, 2010, 01:10:58 PM
If all you're doing is converting center pin + to center pin - on the power plug then yeah.
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: ghostsauce on April 12, 2010, 02:46:01 PM
*Sigh*. 

Turns out Voodoo Lab figured that if I was using a 3.5mm, it'd probably need to be + tip.  And they were right.  Unfortunately I only found out after I cut & spliced it and realized it wasn't working, haha.  Had I tried it, it would have worked the way it was, but the cord was black like all their - tip ones so I assumed it'd be the same since they use white cords for + tip Boss-style connectors.  Ah well, I'll know what I'm doing now if I ever need to do it again.  On the other hand, I have a kickass phaser that will sound amazing for worship music in church. But the flip side of that is that I probably only have room for like 1 more pedal on my board.  :o  I don't know how I'll ever choose.. I might have to rehouse a few into one unit to cut down on space.

Thanks for the help guys :P

Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: StereoKills on April 12, 2010, 03:02:03 PM
Sucks that it didn't work out for you, but I've got a solution for your other problem at least......you need a bigger pedal board!  ;D :icon_twisted:
Title: Re: Hmm, need help reversing the polarity of a smallstone
Post by: ghostsauce on April 12, 2010, 03:11:58 PM
Hahaha, good idea