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Schumann Resonator
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Thank you, Mr Schumann! - diyparadise
/i/86066/products/2021-02-25T13%3A59%3A51.223Z-front%20panels.jpg?1614234345 "Artic EM-Wave Generator (Schumann Resonance Wave) from Artic on Tindie")
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Schumann Resonator | Fabio's blog about electronics
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