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Main : Mechanical : Body and Interiors Dual-Resistor

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Dual-Resistor
Dual-ResistorPopular
SubmitterddgonzalMore Photos from ddgonzal   Last Update2012/5/13 2:40    Tell a friendTell a friend
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22460-H7310 3-tap Ballast Resistor for CAL electronic ignition

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Poster Thread
ddgonzal
Posted: 2012/11/21 23:29  Updated: 2012/11/21 23:29
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31615
 Re: Dual-Resistor
Used by 1975 B210 California model (and 1975-1977 280Z)

the terminal at far left is just a handy post to split the tach signal. It's not part of the resistor circuit.

An important thing to know about the early EI units is: Coil is never connected to 12V. It always goes through the resistor.

So anytime you see the dual-ballast resistor, be careful.

Factory Service Manual said:Quote:
During cranking, electrical current bypasses the secondary resistor, thereby connecting the ignition coil through the primary resistor.