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| SMD components side of the PCB. The tiny SMD transistor is running hot after a while, which is typical of a single transistor oscillator circuit, not too sure if the tiny SMD capacitors and diodes stand well to the supposedly high voltage created by the 3 stage voltage multiplier circuit. |
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Upper side of the PCB. Showing the carbon brush negative ions emitter, a tiny voltage step up transformer, a green LED for power on, a filter cap for the 5V DC Input via the USB connector. USB Negative Ion Generator compare to a Teflon Tube |
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