The “TAC system” refers to the Transistor-Assisted Contact (TAC) ignition system, which was developed by Lucas, a British manufacturer of automotive components. This system was used in some vehicles as an alternative to traditional contact breaker ignition systems.
In the TAC system, transistors are utilized to assist in controlling the ignition timing and firing of the spark plugs. Typically, two transistors are employed in the system, with one acting as a power output transistor. These transistors help to regulate the flow of current to the ignition coil, allowing for more precise timing and improved performance compared to older contact breaker systems.
The TAC system was introduced as a more reliable and efficient alternative to traditional ignition systems, offering benefits such as reduced maintenance requirements and improved ignition timing accuracy.
Overall, the TAC system played a role in advancing ignition technology in automotive applications, contributing to enhanced engine performance and reliability.
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