a step-up transformer with an air core, used for producing high voltages at high frequencies. The secondary circuit is tuned to resonate with the primary winding
WordReference Random House Unabridged Dictionary of American English © 2025
Tes′la coil′, [Elect.]
- Electricityan air-core transformer used to produce high voltages of high-frequency alternating currents. Also called Tes′la transform′er.
- named after its inventor, north, northern. Tesla 1900–05
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