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Re: 6 Volt to 12 Volt Conversion ?
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Posted by Jon H on September 27, 2004 at 17:36:10 from (69.26.16.92):
In Reply to: Re: 6 Volt to 12 Volt Conversion ? posted by tlak on September 27, 2004 at 17:01:06:
Hmm, I don't understand what the point would be of an internal resistor. The last thing that oil filled coil needs is an internal resistor generating more heat ??. The coil is an induction coil,not a transformer, so the number of turns in the primary winding (6V vs 12V) in relation to the secondary winding should have little effect. An induction coil builds a magnetic field using dc power which when turned off collapses the magnetic field and generates a voltage spike of about 20-30,000 volts in the secondary winding and several hundred volts in the primary winding which is absorbed by the condenser to prevent arcing and burning of the points.
Maybe one of the others (B&D or Bob?) can add their knowledge of battery ignition systems to settle this.
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