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July 2009

Nuts and Volts Magazine

Build The Transistor Clock

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Features

Properly Selecting Electronic Components

If you want your circuits to work right, you gotta have the right components for the job. This tutorial will help you make sure you know what you're doing.


How To Basics: Intro to Heatsink Selection and Installation

Don't get burned on your next build. The proper heatsink can save you from burnt fingers and burned up devices!



Projects

The Arch-Ball Clock

This is one for the most unique approaches ever for keeping track of time.


Transistor Clock

Build a digital clock using only transistors as the active elements. The final parts count is 194 transistors, 566 diodes, 400 resistors, and 87 capacitors.



Columns

TechKnowledgey
by Jeff Eckert
Techknowledgey 2009
Topics covered include harnessing antimatter, eye-to-robot interface, Intel fined $1.45 billion, plus other info you won't want to miss.

The Spin Zone
by Jon Williams
Loving LEDs Again
The Stamp Applications column has evolved into Propeller based projects now! This month, you'll be loving LEDs again.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 12: AVR Learning Platform Projects
Another communications project, reading the voltage across a potentiometer, and then redo the Cylon Optometry code for the ALP. Part 12

Q&A
by Russell Kincaid
Q & A
Voltage conversion, understanding thermal lag, software-based power control, plus more.

Personal Robotics
by Vern Graner
The Probotix Fireball V90 CNC Visited
In that article, we detailed the PROBOTIX Fireball v90 — one of the first high-accuracy/sub-$1,000 CNC systems on the market.

Getting Started With PICS
by Chuck Hellebuyck
Improving the PICKit 2 Development Board
The one thing I always wanted to add was a breadboard area, so I modified the development board included with the Starter Kit — it’s called the low pin count development board.

The Design Cycle
by Fred Eady
Kids CAN Love Engineering
This year’s science station consisted of a Lenovo NetBook coupled to a USB-to-CAN bridge. The goal was to introduce the students to a working network they could actually see and touch.

Near Space
by L. Paul Verhage
GPS Simulator for Missions to Near Space
What I need is a convenient GPS simulator that will let me test a flight program on the ground. In this article, I’ll describe what I came up with.

Departments

The End Of The Wristwatch
by Bryan Bergeron
From Developing Perspectives