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Electronic Birdie (ART438E)
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Secret Warning Signal (ART437E)
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Electronic Stethoscope (ART436E)
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Alarm Siren (ART435E)
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Passage Alarm (ART434E)
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Telephone Scrambler (ART433E)
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Remote Listening Amplifier (ART432E)
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Microphone For Remote Listening (ART431E)
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Crazy Dripper (CIR376E)
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Timed Vox (ART430E)
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Shadow Alarm with the 741 IC (ART429E)
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Temperature Alarm (ART427E)
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Heat Leak Detector (ART418E)
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Adapter for bridge amplifier (ART416E)
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Simple TTL Interface (ART415E)
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Pulsing Alarm (ART412E)
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The Brontophonic Sound Circuit (ART401E)
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Psychological Alarm (ART410E)
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Different rhythmic Light (ART409E)
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Simple Audio Attenuator (ART407E)
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Delayed Pulse Generator (ART404E)
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Voltage Inverter for Automotive Use (ART403E)
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Nicad Battery Charger (ART399E)
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Sensor Uses Engine Vibration (ART398E)
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Differential Hall Sensor (ART397E)
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False Money and Documents Detector (ART396E)
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Mini Electrifier (ART395E)
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An Experimental Amplifier (ART394E)
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Constant Lighting (ART393E)
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0 to 15 V x 1 A Power Supply with Touch Voltage Control (ART391E)
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