Nuts & Volts (ISSN 1528-9885/CDN Pub Agree #40702530) is published monthly for $26.95 per year by T & L Publications, Inc., 430 Princeland Court, Corona, CA 92879. PERIODICALS POSTAGE
PAID AT CORONA, CA AND AT ADDITIONAL MAILING OFFICES. POSTMAS TER: 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; firstname.lastname@example.org.
4 January 2016
Reader Questions Answered Here
Topics this month include a scanner frequency change, a
simple remote control, and a telephone off-hook indicator.
■ With Tim Brown
15 The Ham’s Wireless Workbench
Practical Technology from the Ham World
Transmission Lines and SWR.
Learn about a basic element of transmission lines: the standing
wave ratio. Find out why it’s important and how to measure it.
■ By Ward Silver N0AX
24 Build an ESR Meter for Your
Internal resistance within capacitors — known as Equivalent
Series Resistance —can increase over time, causing power loss
and/or heating. With this device, you can test your stash of
capacitors so you can weed out any bad ones before you install
them in your projects.
■ By Larry Coyle
30 Rock It with a MIDI Keytar
Using a Rock Band 3 keyboard, you can construct a very
inexpensive, yet very capable MIDI controller for use in the
studio or on stage.
■ By Dan Levin
35 Smart Things and the
Discover a home automation platform with a cloud-based
development environment that lets you create custom apps
and microcontroller-based devices to talk to over Zigbee that
you can control with your smartphone.
■ By John Rucker
45 Vintage Computing — Five Easy
Projects for Your Mentor’s Friend
Utilizing the retro computer described last month, here are
some fun projects to get you started on a technology
adventure, exploring computers and programming.
■ By Dane Weston
54 Beyond the Arduino — Part 8
Power: Less is definitely more here as we focus on ways to
reduce the power consumption in our projects so they can run
for longer on less.
■ By Andrew Retallack
Easing into STEM
07 READER FEEDBACK
20 NEW PRODUCTS
52 NV WEBSTORE
64 TECH FORUM
66 AD INDEX
Nuts & Volts — PO Box 15277
North Hollywood, CA 91615-9218
Call 877-525-2539 or go to www.nutsvolts.com
Subscribe • Gift • Renewal • Change of Info