This electronic bait, or fish attractor, produces a sound in the water that attracts fish of certain species. The buzzer can be a small ceramic transducer and the T1 transformer is an output transformer using an old transistor radio. P1 adjusts the sound produced. power can be done with one or two small batteries. The circuit is from the book Fun Projects for the Experimenter by Newton C. Braga, published in the United States.
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