This is CMOS 4047 Insect Repellent Suite electro suite, which can repell insects effectively, without disrupting the human hearing.
A CMOS 4047, consists of PLL (Phase Looked Loop) oscillator with the frequency of 22 Khz, and the current drain is around 120mA. By placing the Motorola 3.25″ Piezo
CMOS 4047 Insect Repellent Suite
Posted By ElectroSuite.com on Thursday, August 18, 2011 | 9:16 AM
Blog, Updated at: 9:16 AM
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