Bare Knuckle Pickups Forum
Forum Ringside => Pickups => Topic started by: shamahockey on July 14, 2016, 11:32:19 AM
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I'm looking at buying a Juggernaut bridge and either Emerald or Coldsweat neck to go into a schecter 7 string with a mahogany body, maple neck and ebony fingerboard.
I want to wire up a 3 position switch so that position 2 is one coil from the bridge and one from the bridge and hum canceling. From my reading this is how Petrucci wires his pickups? I have 2 volumes, 1 tone and a 3 way blade switch.
1 - Do I need to request that the neck pickup have it's polarity reversed?
2 - Is the middle position of the switch supposed to be wired in parallel or series to be hum canceling?
3 - Does it matter which one of the coils is used from each pickup for the middle position?
4 - Can someone refer me to a schematic for this wiring?
For reference I've searched thru the boards and talked to BK previous to this but am still a little confused...
Any advice would be appreciated.
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The Petrucci style wiring is here:
http://www.dimarzio.com/sites/default/files/diagrams/2h1v1t_1ep1111petrucciDsonic.pdf
It requires a 4PDT switch. I'm not sure how you would modify it for 2 volumes, though.
The middle position should be hum cancelling. It's the two inner coils in parallel (though Petrucci has repeatedly referred to it as "series" in interviews for some reason).
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Thank you for the reply!
Are the 2 inner coils the magnet or the slug in this scenario? And is this assuming I've requested a reverse polarity neck pickup?
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The inner coils are usually the slug coils (or the blade coil in the case of the Crunchlab).
I could be wrong, but I don't think this requires a reverse-polarity neck PU. I've done the Petrucci wiring on a couple different guitars (an ESP H207 with a Dimarzio Air Norton-7 in the neck and a Duncan Custom-7 in the bridge, and an OLP Petrucci with the stock pickups) and never had to do a mag flip or anything like that.