A transformer-coupled double-resonant pr
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Jeffrey R. Fitzsimmons; H. Ralph Brooker; Barbara Beck
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Article
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1987
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John Wiley and Sons
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English
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A new type of double-resonant coil which takes advantage of the properties of a radio-frequency transformer is described. Two concentric loops are wound in close proximity to yield a high mutual inductance. The primary side is tuned to 34 MHz for 31P and the secondary side is tuned to 85 MHz for pro