Established in 1969, Perma-Tune is an electronics manufacturing firm specializing in producing advanced ignition technology systems. The Perma-Tune Black ignition coil is one of the company's products.
The ignition coil is a fundamental part of the ignition system whose primary role is to provide high Voltage energy to the spark plugs which ignites the fuel in the combustion chambers of the engine. Combustion is achieved when the high Voltage energy produced by the ignition coil causes a spark at the spark plug electrodes. Also known as a transformer, an ignition coil transforms a car's low-voltage battery of 12 Volts to produce thousands of Volts (can be as much as 50,000) required to cause a spark at the spark plug electrodes. The coil must generate hundreds of sparks per second to provide all of the engine cylinders with ignition power at each spark plug.
An ignition coil consists of a primary winding, a secondary winding, and an iron core. A primary winding consists of a thick copper wire with 200 to 300 turns (the amount of magnetic force generated based on the amount of coil current), insulated from one another. A secondary winding consists of a thin copper wire that accommodates a large number of turns (approximately 21,000), insulated from each other via an enamel wire and layers of oiled paper. An ignition coil structure consists of the iron core at the center surrounded by both the primary and secondary windings. The internal components of the ignition coil are submersed in dielectric oil or tar which insulates the low Voltage primary windings from the high Voltage secondary windings.
