N&V January 2013

N&V January 2013
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Price: $6.00
Product ID : SKU17158




  • The Sirius Metronome for the Serious Musician by Thomas Henry
    One of the most important tools any musician needs is a metronome. The circuit described here sports a number of impressive features that even more expensive commercial units can’t provide.
  • Build an Inverting DC-DC Converter by Jim Stewart
    Ever need negative voltage when all you can get is positive? This voltage mirror device will give you -V out when you put +V in, and works over a range of voltages without adjustment.
  • King Tut’s Pyramid Gravimeter by Ron Newton
    Use this novel assembly to determine the gravity of most any situation.


  • Techknowledgey by Jeff Eckert
    Events, Advances, and News
    Some of this month’s tidbits include a supercomputer that hits 20 petaflops/s, the next-gen of the iMac family, and how to record your entire life effortlessly.
  • Smiley’s Workshop by Joe Pardue
    Fritzing With the Arduino Proto Shield — Part 6
    This month, we will transfer the components from the mini breadboard to the underlying Arduino PCB prototyping area on the proto shield.
  • Q&A by Russell Kincaid
    Reader Questions Answered Here
    Questions about a voltage converter, a trigger LED from a distributor, and a bench top power supply are answered, plus a digital pressure gauge is revisited this time around.
  • The Design Cycle by Fred Eady
    LMX-ISM-242 State of Mind
    While you were gone, I managed to get my hands on the official Lemos hardware.
  • The Spin Zone by Jon McPhalen
    New Life for an Old LCD
    The displays we’re looking for specifically use the Philips PCD8544 matrix LCD driver/controller.
  • Near Space by L. Paul Verhage
    Using the Nearspace Simple Flight Computer
    Last time, we covered building the NearSpace Simple-18 flight computer. Now, it's time to test and learn how to use it prior to its first near space launch.

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