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03-31-2009, 10:12 AM
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#1
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Newbie
Join Date: Mar 2009
Posts: 0
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Where I find a -12v?
Hi guys where I can find a -12V of the ignition? I need -12v of the ignition not the +12v.
Thank you.
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04-01-2009, 12:00 PM
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#2
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Bowel movement
Join Date: Dec 2003
Location: not sure yet.
Posts: 1,644
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there is one? would the body of your vehicle work?
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04-01-2009, 04:57 PM
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#3
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What can I say? I like serial.
Join Date: Mar 2004
Location: Florence Yall, BFKY
Posts: 2,157
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Connect a 12V battery positive to ground, then negative is -12V
What day is this? 
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04-01-2009, 09:44 PM
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#4
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Bowel movement
Join Date: Dec 2003
Location: not sure yet.
Posts: 1,644
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its - is + and + is - day!
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04-02-2009, 04:14 AM
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#5
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Newbie
Join Date: Nov 2003
Posts: 45
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There is no -12 in standard car electrical system.
Modern cars are -ve earth. That means the 'earth'
is the car body.
Earth in a car is 0v NOT -12v.
If you connect across -12 and +12 you get... 24V
(pretty easy maths guys!)
I'm going to go ahead and assume the op is confused or
has brought something for the car with incorrect
instructions!
C
Last edited by Cerberus; 04-02-2009 at 08:02 AM.
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04-02-2009, 04:53 AM
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#6
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Variable Bitrate
Join Date: Mar 2009
Location: Kristiansand, Norway
Posts: 285
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or confused since the power cradle connector for a PC-motherboard both have -12V and -5V
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04-02-2009, 08:25 AM
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#7
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What can I say? I like serial.
Join Date: Mar 2004
Location: Florence Yall, BFKY
Posts: 2,157
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Polarities are reversed in Australia because it's below the equator! That's what I hear anyway.
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04-02-2009, 09:11 AM
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#8
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Admin. Don't bug or I'll byte.
Join Date: Sep 2004
Location: Corning, NY
Posts: 6,143
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Quote: Originally Posted by Curiosity  Polarities are reversed in Australia because it's below the equator! That's what I hear anyway.
That's not technically correct. Electricity flows backwards below the equator. This is because the earth's core is essentially a giant magnet. The electricity flows one direction above the equator -towards the north pole, while below the equator it flows south. It then passes through the earth's core where it helps to heat the center.
The reason everything appears the same down there is they wire the cars according the the AFDJ standard. What we think of as the "minus" side of the battery has a red colored cable attached to it. Inside the car, all would appear normal to anyone installing equipment.
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04-02-2009, 06:03 PM
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#9
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Maximum Bitrate
Join Date: Apr 2005
Location: 2hr west of Chicago
Posts: 669
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Mine always works when I turn the key, The car does all the work and I dont have to find anything.
__________________
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04-03-2009, 01:01 PM
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#10
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Variable Bitrate
Join Date: Mar 2009
Location: Kristiansand, Norway
Posts: 285
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Quote: Originally Posted by Bugbyte That's not technically correct. Electricity flows backwards below the equator. This is because the earth's core is essentially a giant magnet. The electricity flows one direction above the equator -towards the north pole, while below the equator it flows south. It then passes through the earth's core where it helps to heat the center.
The reason everything appears the same down there is they wire the cars according the the AFDJ standard. What we think of as the "minus" side of the battery has a red colored cable attached to it. Inside the car, all would appear normal to anyone installing equipment.
Then what would happen if one take a car from Australia up to some place in Europe... Would all of the electricity get fried?
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04-03-2009, 03:00 PM
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#11
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What can I say? I like serial.
Join Date: Mar 2004
Location: Florence Yall, BFKY
Posts: 2,157
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Nah, it would just run backwards.
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04-03-2009, 03:40 PM
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#12
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North of the land of Hey Huns
Join Date: Jun 2004
Location: Westminster, MD
Posts: 1,038
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Quote: Originally Posted by Crinos Then what would happen if one take a car from Australia up to some place in Europe... Would all of the electricity get fried?
Quote: Originally Posted by Curiosity
Nah, it would just run backwards.
There is an entire racing style based on this
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04-05-2009, 08:05 PM
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#13
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Constant Bitrate
Join Date: Aug 2005
Location: Jersey
Posts: 222
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Wow this thread is hilarious
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04-06-2009, 01:15 PM
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#14
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Variable Bitrate
Join Date: Mar 2009
Location: Kristiansand, Norway
Posts: 285
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Quote: Originally Posted by DaPCWiz Wow this thread is hilarious
Off Topic? Naaaah 
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