28
78
40
08
46
SEPTEMBER 2006
PROJECTS
and FEATURES
38 NINE VOLT FUNCTION
GENERATOR
This circuit produces a sine,
square, and triangle wave.
■ By Frank Reiser
40 CONTROL YOUR WORLD
Interface your PC to an LED sign.
■ By Michael Simpson
ON THE COVER ...
Can you generate
200 volts DC from
a five-volt DC
power supply?
You bet you can!
46 A WIDE RANGE PERIOD
COUNTER/TOTALIZER
There are many situations
where it’s just more convenient
to count electrical signals rather
than frequency.
■ By Robert Reed
COLUMNS DEPARTMENTS
60 UNDERSTANDING DIGITAL
LOGIC ICs
TTL basic usage rules.
■ By Ray Marston
67 ELF TURNS 30
Final construction, testing, and
ideas for expansion.
■ By Robert Armstrong
72 THE HIGH VOLTAGE PIC
Build a 200-volt DC boost power
supply driven by the 18F2455
Microchip PIC.
■ By Robert Lang
08 TECHKNOWLEDGEY 2006
Events, advances, and news
from the electronics world.
12 STAMP APPLICATIONS
SX/B Turns Sweet 16.
20 Q&A
Modifying a laser pointer, 50 ways
to debounce an input, automatic
airport lights, plus more.
28 PERSONAL ROBOTICS
The Saga of the Silver Bomber.
78 NEAR SPACE
Booms and Sounds.
84 THE DESIGN CYCLE
The Land of TCP/IP.
90 GETTING STARTED WITH PICs
Real Time Clock.
06 READER FEEDBACK
32 NEW PRODUCTS
36 SHOWCASE
54 NEWS BYTES
66 ELECTRO-NET
96 CLASSIFIEDS
100 NV BOOKSTORE
102 TECH FORUM
105 ADVERTISERS INDEX
Nuts & Volts (ISSN 1528-9885/CDN Pub Agree#40702530) is published monthly for $24.95 per year
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4
September 2006
