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N&V May 2012
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Description

Features

  • Electronic Schematic Diagrams for Experimenters and Technicians by David Herres
    Read about some of the options you have to create your own professional looking diagrams.

Projects

  • Build the Poor Man’s Seismograph by Ron Newton
    A PIC-based, DIY seismograph that uses old school pendulum technology.
  • Build a Sound-Activated Laser Parking System by Paulo Oliveira
    If you’d like to break free from your “hanging tennis ball” method of parking, check out this approach which utilizes two ordinary low power laser pointers.

Column

  • Techknowledgey by Jeff Eckert
    TechKnowledgey 2012
    This month, read about really twisted radio, no-compromise sound from your PC, a sonic screwdriver, plus some other interesting stuff.
  • The Spin Zone by Jon Williams
    The Spin Zone
    Back to the Beginning.
  • Q&A by Russell Kincaid
    Reader Questions Answered Here
    AC ammeters, battery internal resistance, and transformerless power supplies are discussed this time.
  • The Design Cycle by Fred Eady
    The Design Cycle
    Control Gadgets With Your Smart Phone.
  • Near Space by L. Paul Verhage
    Near Space
    Making One Camera Do the Work of Three.
  • Smiley’s Workshop by Joe Pardue
    Smileys Workshop: An AVR C Programming Series (Part 46)
    Chaser Light Marquee — Part 2.
  • Fundamentals For Beginners
    Build a Nose Beeper
    With this circuit, when you touch your friend’s nose you can make the speaker sound.

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