Passage Alarm (ART434E)
Telephone Scrambler (ART433E)
Remote Listening Amplifier (ART432E)
Microphone For Remote Listening (ART431E)
Crazy Dripper (CIR376E)
Timed Vox (ART430E)
Shadow Alarm with the 741 IC (ART429E)
Temperature Alarm (ART427E)
Heat Leak Detector (ART418E)
Adapter for bridge amplifier (ART416E)
Simple TTL Interface (ART415E)
Pulsing Alarm (ART412E)
The Brontophonic Sound Circuit (ART401E)
Psychological Alarm (ART410E)
Different rhythmic Light (ART409E)
Simple Audio Attenuator (ART407E)
Delayed Pulse Generator (ART404E)
Voltage Inverter for Automotive Use (ART403E)
Nicad Battery Charger (ART399E)
Sensor Uses Engine Vibration (ART398E)
Differential Hall Sensor (ART397E)
False Money and Documents Detector (ART396E)
Mini Electrifier (ART395E)
An Experimental Amplifier (ART394E)
Constant Lighting (ART393E)
0 to 15 V x 1 A Power Supply with Touch Voltage Control (ART391E)
Preamplifier For Magnetic Pickup (ART390E)
Electronic Thermometer (ART389E)
Electronic tuning fork (ART388E)
Active Tone Control (ART387E)

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