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Nuts & Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter. It’s the perfect addition to the electronics DIYer’s arsenal! Each month, you’ll find the tools you need to build your skills and knowledge!

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Current Issue - April 2015

Organize Your Bench With 3D Printed Storage

Recent Comments
re: Reader Questions Answered Here
I also found the oscillator in Mr. Wandishin’s letter of interest (ref your Figure 7).  A bit of internet sleuthing found that (1) the “4584N” is a CD4584 Schmidt trigger (six devices), and that Schmitt triggeers can be used as oscillators—see, for example, A Schmitt trigger is a bistable multivibrator,… ~ LL

re: The Lost Art of Strip Board Prototyping
1.Veroboard has recently become available at Amazon in the US. 2. I prefer creating opens in the traces with a 2.5mm drill instead of scratching with a knife - looks much nicer. 3. A viable alternative are prototyping boards which have the same hole/connection pattern as the plugin-breadboards. Tweak your… ~ Privatier

re: Hack an LED Desk Lamp
Jim, In a Wiki article at: it lists the ratings using 500mA for AA batteries of various types. Let’s assume your LEDs and circuits are 50% efficient for the 12 Volt battery running it up to 20 Volts, so it uses 300mA @ 12V to get the 150 mA… ~ PhilKE3FL

re: Events, Advances, and News (3.2013)
RE: TECH Knowledge 2013, March Pg 10, “Slicing with sound” The photo comment says, “Artificial kidney stone with 150 m opto-acoustically created hole.” That must be some extremely large kidney stone to be able to sport a 150 meter diameter hole! I hope it’s not a 150 meter radius hole!… ~ PhilKE3FL

re: Build Your Own PIC Trainer from Surplus
Hi, Thanks for the interest in the Trainer. I design all my own PCBs with an archaic program (runs under Windows 3.1!) which doesn’t support Gerber or other exports. So, sorry, but I can’t help you out. I’ve always just etched my own boards with a homemade affair, using PnP… ~ Thomas_Henry

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  • CubeSats — Part 3: Attitude and Velocity

    Learn about some “toys” that help CubeSats control their own attitude and velocity. Read More...

  • 3D Custom Storage Boxes

    Get your electronics über organized with specially designed storage drawers. Read More...

  • The RN4020 PICtail Plus BLE.

    Bluetooth 4.0 is becoming the de facto standard when it comes to embedded device monitoring and control from iPhones and Android devices. Microchip’s BLE radio module is called the RN4020. Unlike many of the other BLE offerings, the RN4020 Bluetooth Low Energy radio module comes backed with a full load of example code and hardware development tools. This month, we’ll get started on the BLE path with Microchip’s RN4020 PICtail, a terminal emulator, and a laptop. Read More...

  • Can We Talk? Again?

    This month’s project goes through setting up a simple command language for controlling the Propeller through a serial interface. Read More...

  • Reader Questions Answered Here (04.2015)

    Making a smart house smarter, a telephone off-hook alarm, and radio tuning are question topics this time. Read More...