ADJUSTABLE_SENSITIVITY_FIELD_STRENGTH_INDICATOR

Published:2009/6/29 2:24:00 Author:May | From:SeekIC

Circuit Notes The LED lights if the rf field is higher than the pre-set field strength level. Diodes should be germanium. Transistors (NPN) = 2N2222, 2N3393, 2N3904 or equivalent.



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