Elektor June 2007

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Table of Contents Elektor June 2007

• 2.4 GHz WiFi Spectrum Analyser
  What’s happening in your area?
• A 100 nH to 100 mH Single-Range Inductance Meter with LCD Readout
  Coil Clinic
• A sensor that Reads Fingerprints using RF Signals
  Reliable Fingerprints
• Acoustic vertical speed indicator
  Whistles from on high
• Class-A Triode Push-Pull Amplifier
  Tube Sound
• Flowcourse: Alarm System
  Handling stimuli
• Hexadoku June 2007
  Puzzle with an electronic touch
• Linux Oscilloscope
  Development with µCLinux
• Mailbox June 2007
  
• OBD
  between ecology, marketplace and Big Brother
• Poor Man’s AVR Flash Programmer
  Simple DIY Programming
• Portable Multimeters with a Serial Interface
  Meters with a tail
• SDR Soundcard Tester
  design tip
• Stand-Alone OBD-2 Analyser
  Interpret 'trouble codes' without PC
• Type 1650-A Impedance Bridge (1960)
  retronics