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The electrical resistance of the coil, the voltage output of the device, the airflow of the atomizer and the efficiency of the wick all affect the vapor coming from the atomizer. [83] They also affect the vapor quantity or volume yielded. [83] Atomizer coils made of kanthal usually have resistances that vary from 0.4Ω to 2.8Ω. [83]
Tesla coil circuits were used commercially in spark-gap radio transmitters for wireless telegraphy until the 1920s, [1] [4] and in medical equipment such as electrotherapy and violet ray devices. Today, their main usage is for entertainment and educational displays, although small coils are still used as leak detectors for high-vacuum systems ...
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