N&V_2006-11.pdf

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RabbitFLEX
• Click-to-ship in 5 days!
• Pay only for what you need
• Revision friendly
• Perfect for prototype and production
RabbitFLEX™ is an unique build system that gives you the
power to develop custom boards without the hassle and
the cost. The RabbitFLEX simple-to-use web interface allows
you to choose from numerous options such as digital I/O,
analog I/O, serial ports, and Ethernet connections on your
custom board. Just configure and buy online and our patent
pending manufacturing process will deliver your solution
in a matter of days. With RabbitFLEX you will reduce design
risk, manufacturing cost, and development time.
Start developing now by ordering the
RabbitFLEX Tool Kit and your own
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solution to the next level.
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www.myrabbitfl ex.com
Quick-Turn Boards Range From
$
RabbitFLEX Tool Kit
$
Test Drive RabbitFLEX
Build your custom RabbitFLEX board online.
Add a tool kit to your order for a complete
development system including Dynamic C®.
www.myrabbitflex.com
$ 49
Value
Free
Book
For a limited time
with kit purchase.
2900 Spafford Street, Davis, CA 95616 Tel 530.757.8400
Solutions That Work
A New Way To Customize
149- $ 279
199
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PROJECTS and FEATURES
NOVEMBER 2006
36 RESTORING THE PHILCO
PT-44 ANTIQUE RADIO
Bring a part of radio history back
to life.
■
42
By Aaron Dahlen
102
08
42 AN ELECTRONIC SLIDE RULE
Give a face-lift to an old school
method.
■
By Robert Lang
ON THE COVER ...
48 STAND-ALONE DDS UNIT
Direct Digital Synthesis is one
of the more prevalent methods
used today to generate a
frequency agile signal.
■
TRIBUTE TO THE TUBE:
TRIODE TURNS 100
By Larry Cicchinelli
54 SQUARE ROOT ON A PIC
Small MCUs are often
underestimated in the amount
of real math they can perform.
■
By Noel Henson
COLUMNS DEPARTMENTS
TRIBUTE TO THE TUBE
Special Editorial Section
67 THE TRIODE IS 100YEARS
OLD THIS YEAR
■
08 TECHKNOWLEDGEY 2006
Events, advances, and news
from the electronics world.
06 READER FEEDBACK
30 NEW PRODUCTS
12 GETTING STARTED WITH PICs
PIC Hardware Interface.
By Vaughn D. Martin
32 SHOWCASE
70 MAKING SOMETHING
FROM NOTHING
■
By H. Ward Silver
18 PERSONAL ROBOTICS
The Saga of the Silver Bomber —
Part 2.
60 NEWSBYTES
74 DAVID SARNOFF AND THE
BIRTH OF AM RADIO
■
24 Q&A
Digital pot light fader, $10 audio
mixer, golf cart gas gauge,
plus more.
64 ELECTRO-NET
By Edward Driscoll, Jr.
88 CLASSIFIEDS
76 VACUUM TUBE IN ITS
100th YEAR: SAME
OLD CHALLENGES
■
92 THE DESIGN CYCLE
‘DISCOVER’ing DHCP Messages.
108 NV BOOKSTORE
By George Trinkaus
96 STAMP APPLICATIONS
Hacking the Parallax GPS Module.
110 TECH FORUM
80 VACUUM TUBES FOR THE
21st CENTURY
■
102 NEAR SPACE
The BalloonSat Flight Computer.
113 ADVERTISERS INDEX
By Bob Armstrong
84 THE ANTIQUE WIRELESS
MUSEUM
■
By Terry Turner
Nuts & Volts (ISSN 1528-9885/CDN Pub Agree#40702530) is published monthly for $24.95 per year
by T & L Publications, Inc., 430 Princeland Court, Corona, CA 92879. PERIODICALS POSTAGE PAID AT
CORONA, CA AND AT ADDITIONAL MAILING OFFICES. POSTMASTER: Send address changes
to Nuts & Volts, P.O. Box 15277, North Hollywood, CA 91615 or Station A, P.O. Box 54,Windsor
ON N9A 6J5; cpcreturns@nutsvolts.com
4
November 2006
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Link Instruments
PC-Based Test Equipment
Logic Analyzers
New LA-5000 Series
• 40 to 160 channels
• up to 500 MSa/s
• Variable Threshold
• 8 External Clocks
• 16 Level Triggering
• up to 512K samples/ch
• USB 2.0 and Parallel Interface
• Pattern Generator option
LA5240 (200MHz, 40CH) $1700 USB 2.0/Parallel
LA5280 (200MHz, 80CH) $2350 USB 2.0/Parallel
LA5540 (500MHz, 40CH) $2500 USB 2.0/Parallel
LA5580 (500MHz, 80CH) $3500 USB 2.0/Parallel
LA55160 (500MHz, 160CH) $7500 USB 2.0/Parallel
Small and portable LA-2124
$800
• Small, Lightweight and Portable
• Only 4 oz and 4.75” x 2.75” x 1”
• Parallel Port Interface to PC
• Trigger Out
• 24 Channel Logic Analyzer
• 100MSa/S max sample rate
• Variable Threshold Voltage
• Large 128k Buffer
Digital Oscilloscopes
• 2 Channel Digital Oscilloscope
• 100 MSa/s max single shot rate
• 32K samples per channel
• Advanced Triggering
• Only 9 oz and 6.3” x 3.75” x 1.25”
• Small, Lightweight, and Portable
• USB or Parallel Port interface
• Advanced Math
• FFT Spectrum Analyzer (option)
DSO-2102S $525
DSO-2102M $650
DSO-2102S(USB) $600
DSO-2102M(USB) $725
Link Instruments (973) 808-8990
17A Daniel Road East · Fairfield, NJ 07004 · Fax (973) 808-8786
www.Link-instruments.com
November 2006 5
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