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This is only a preview of the April 2017 issue of Silicon Chip. You can view 40 of the 96 pages in the full issue and the advertisments. For full access, purchase the issue for $8.20 or subscribe for access to the latest issues. Items relevant to "El Cheapo Modules, Part 6: Direct Digital Synthesiser":
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Contents
Vol.30, No.4; April 2017
SILICON
CHIP
www.siliconchip.com.au
Features
14 DRED: they can turn your aircon off!
It sounds like a misprint! DRED is a “feature” built into all new air conditioners
and if enabled, will allow supply authorities to remotely turn your air conditioner
down by 25%, 50% or even to fan-only mode – by Dr David Maddison
18 El Cheapo Modules, Part 6: Direct Digital Synthesiser
This tiny DDS function generator module can produce accurate sine, square or
triangle waveforms from 0.1Hz to 12.5MHz. It uses the Analog Devices AD9833
DDS chip and a 25MHz crystal oscillator and costs next to nothing – by Jim
Rowe
DRED allows supply authorities to
control your air conditioner – without
your knowledge – Page 14
79 Review: Keysight DSOX1102G Digital Oscilloscope
There are a lot of compact, low-cost scopes on the market. Some undercut the
Keysight on price but we doubt if any of them could compete with the sheer
performance of the MegaZoom IV chipset – by Nicholas Vinen
Projects To Build
Many musicians prefer the sound
of a spring reverberation unit over
modern digital types – Page 26
26 New Spring Reverberation Unit
Can a reverb unit make a mediocre guitarist sound like a star? Maybe not, but
this spring reverb unit will really lift your sound – by Nicholas Vinen
38 The eFuse: never replace another blown fuse
When you’ve replaced a fuse for the nth time, you’ll wonder why you didn’t build
the eFuse! Press a button and it resets – by John Clarke
53 A Digital LCD Audio ’Scope for less than $40!
This build-it-yourself Chinese scope kit gives a good bang for your buck. Great
for audio troubleshooting and general electronics work – by Jim Rowe
Sick of replacing
fuses? Just push the button
on our new eFuse and it resets
itself – Page 38
68 Micromite BackPack Touchscreen DDS Signal Generator
Combines a low-cost DDS module with a Micromite BackPack to produce a
highly useful sine, square and triangle waveform generator with a touchscreen
LCD. It’s ideal for audio and RF applications, including service work – by Geoff
Graham
Special Columns
58 Serviceman’s Log
Stomping on the effects pedal killed it! – by Dave Thompson
76 Circuit Notebook
(1) Two modifications for the Battery LifeSaver
(2) Measuring weight using an Arduino
(3) Simple bird scarer stops tree damage
Yes! You can build a fully
functioning audio LCD ’scope for
under $40.00! – Page 53
84 Vintage Television
Sony’s TV8-301: the world’s first direct-view transistor TV set – by Ian Batty
Departments
2 Publisher’s Letter 90 Ask Silicon Chip
4 Mailbag 95 Market Centre
25 SILICON CHIP Subscriptions 96 Advertising Index
siliconchip.com.au
82 SILICON CHIP Online Shop 96 Notes and Errata
Add a
Micromite BackPack
to a cheap DDS module and you
have a multi-waveform function
generator with LCD – Page 68
April 2017 1
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