Projects

Articles
Title
Secret Warning Signal (ART437E)
Electronic Stethoscope (ART436E)
Alarm Siren (ART435E)
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)
Lead-Acid Battery State Monitor (ART400E)
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)

Page 4 of 13