Elektor February 2007

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Table of Contents Elektor February 2007

• Bi-colour LEDs operated by LDR
  design tip
• E-blocks Light Chaser
  Flowcode from the ground up
• Explorer-16 (2)
  Part 2: Explorer-16 Value Pack and audio signal processing
• First steps in Software Defined Radio (SDR)
  I-Q: a Highly Intelligent Approach to Quality Radio
• Flying Robots
  Drones: from remote control to UAV and roboplane
• FPGA Course (9)
  Part 9: the final act
• Hexadoku February 2007
  Puzzle with an electronic touch
• High-output LEDs come to town
  High-Power
• LDO Regulator
  design tip
• Mailbox February 2007
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• Over-air telemetry for model rockets
  … 3, 2, 1, Takeoff!
• Philips SFM114/00 Wobbulator (1952)
  retronics
• Radio timecode clock using graphical programming and a CPLD chip
  A Telling Way of Telling the Time
• Stereo Microphone Preamplifier
  For MP3 equipment
• Toilet Guardian
  Biogas warning prevents unpleasant surprises