June 2004 Issue

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PROJECTS
DIGITAL SINE WAVES
Programmatically generate waves up to 100 kHz through serial control.
by Tom Napier
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THE ENIGMA MACHINE
Part 1: An introduction to the theory behind this high voltage apparatus.
by Gerard Fonte
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ANALOG SINE WAVES
Use the ICL8038 function generator chip to fashion a useful benchtop tool!
by Paul Florian
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FEATURES
LEARNING DSP WITH MATLAB
Experiment with digital signal processing with a free copy of Matlab and your PC sound card.
by Jeremy Clark

WORKING WITH DIGITAL FILTERS
Design and build a digital filter — even if you aren’t a mathematician.
by Peter Best
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TETSUJIN 2004
Details about the cutting edge event
sponsored by our sister publication,
SERVO Magazine.

COLUMNS
NEAR SPACE
Choosing the right data logger.
JUST FOR STARTERS
Starting a new design, Part 1: Architecture and implementation.
PERSONAL ROBOTICS
Hack R/C cars for robotics control.
ELECTRONICS Q&A
All About Relays; Low Power and Low Voltage Operation; Sidacs Defined; Two Projects on the Lighter Side; and more.
STAMP APPLICATIONS
Drumming up control.
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OPEN COMMUNICATION
Spread spectrum radio and CDMA cell phones.

TECHKNOWLEDGEY 2004
Electricity from Sewage; 2.5 GHz PCB; Swiss Army Knife Memory; and more.
IN THE TRENCHES
For design engineers facing real world problems. This month: Statistics, Part 2.


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