This is only a preview of the August 1997 issue of Silicon Chip. You can view 34 of the 96 pages in the full issue, including the advertisments. For full access, purchase the issue for $10.00 or subscribe for access to the latest issues. Articles in this series:
Articles in this series:
Items relevant to "A 500 Watt Audio Power Amplifier Module":
Items relevant to "Build A TENS Unit For Pain Relief":
Items relevant to "PC Card For Stepper Motor Control":
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PRODUCT SHOWCASE
Onkyo AC-3 home theatre receiver
Amber Technology has
announced the Onkyo
Integra TX-DS838 Home
Theatre Receiver, with
Dolby Digital (AC-3)
Surround decoding,
dual DSP processors
and 12 surround modes.
The discrete output circuitry of
the TX-DS838 delivers 100W RMS
per channel in stereo mode or 90W
RMS to the front left, centre and right
channels and 50W RMS to each of
the rear channels in surround mode.
The non-NFB (negative feedback)
power amplifiers feature dual inverted Darling
ton circuitry. Heavy-duty
power supplies feature an automatic
cooling fan which switches on under
heavy loads to prevent overheating.
The TX-DS838 is equipped with
dual 24-bit Motorola 56009 and
56004 DSP chips working in unison
to provide improved DSP processing
capability. There are twelve digital
surround modes: Dolby Digital Surround AC-3, AC-3 Action, AC-3 Drama, AC-3 Musical, Dolby Pro Logic,
Pro Logic Action, Pro Logic Drama,
Pro Logic Musical, Hall, Live, Arena
and Stadium.
The receiver features comprehensive video signal routing and switching, with four video and eight audio
inputs. A front-panel input (Video
4) is provided for easy connection
Laptop computer
batteries
Premier Batteries has introduced
laptop computer batteries to their
range of products. This new range
is compatible with Toshiba, Com
paq, IBM, NEC and Macintosh
computers.
The new batteries are fitted with
the latest Nickel Metal Hydride
cells, giving performance and run
times said to be equal to or better
than provided by the original
batteries. All batteries are direct
replacements for the original product and carry the comprehensive
Premier warranty.
For further information, contact
72 Silicon Chip
and playback from a Camcorder. A
3-page on-screen display offers easyto-follow adjustment of all operating
par
ameters. Intelligent Power Management automatically activates the
entire AV system when the connected
television is switched on.
The Onkyo TX-DS838 measures
435 x 175 x 428mm, weighs 15kg, is
finished in black brushed or burnished
gold aluminium, and has a recommended retail price of $2999.00.
For further information, contact
Amber Technology, Unit B, 5 Skyline
Place, Frenchs Forest, NSW 2086.
Phone (02) 9975 1211; fax (02) 9975
1368.
Visio Technical for
schematic diagrams
Premier Batteries Pty Ltd, 9/15
Childs Rd, Chipping Norton, NSW
2170. Phone (02) 9755 1845; fax
(02) 9755 1354.
Based on drag and drop technology, Visio Technical 4.5 allows users
to quickly create 2-D drawings and
technical sche
matics, without the
long learning curve normally associated with CAD software. The package
comes with more than 2000 “Smart
Shapes” (including electrical and
electronic symbols), organised into
78 task-specific stencils. Drawings
are created by dragging and dropping
the symbols you want from the stencil
library along the lefthand edge of the
screen and onto the drawing area to
the right.
According to Visio, the SmartShape
symbols resize without distorting. The
technology also ensures that sections
of shapes appear or remain hidden
as needed and that text goes where it
belongs. Naturally, you can also create your own SmartShapes using the
inbuilt SmartShape Wizard.
A powerful set of drawing tools is
included for creating custom shapes
and the program features automatic
layout and intelligent line routing.
This means that the program can
automatically reposition shapes and
connecting lines as required.
AutoCAD compatibility is another
feature and the program can both import and export AutoCAD file formats.
In addition, there are import filters for
files created in CorelDRAW, Corel
FLOW, Micrografx Designer and ABC
Flowcharter. Files can be imported
and exported in a variety of formats,
including BMP/DIB, CGM, EPS/AI,
GIF, IGES, JPEG, PICT, PNG, TIFF
and WMF.
As might be expected these days,
Visio Technical 4.5 supports Internet
publishing and you can save drawings as HTML files with linked image
maps, or as GIF, JPEG or PNG graphics.
There’s also support for TrueType
and other Windows fonts, an inbuilt
spelling checker and improved colour
formatting with new gradient fills.
Visio Technical 4.5 runs under Windows 95 and Windows NT. A 16-bit
version of the program (Visio Technical 4.1) is also included in the package
on a separate CD ROM for Windows
3.1x users. The recommended retail
price is $499 or users can upgrade from
previous versions for $249.
For further information, contact
Visio International Inc., Level 17, 275
Alfred St, North Sydney 2060. Phone
1800 551 976.
Mitsubishi’s video
projector
A new projector from Mitsubishi
Electric is now available. With a screen
projection diagonal of up to 762cm
(300 inches), the projector can create
an image which is over 10 times larger
AUDIO
TRANSFORMERS
Manufactured in Australia
Comprehensive data available
Harbuch Electronics Pty Ltd
9/40 Leighton Pl. HORNSBY 2077
Ph (02) 9476-5854 Fx (02) 9476-3231
than current 68cm TV sets.
Mitsubishi’s Liquid Crystal Polymer
Composite (LCPC) projector has an extremely bright image because, unlike
conventional projectors, it does not
require a polariser and thus uses light
more efficiently.
The Mitsubishi projector can be
connected to a TV, VCR, video camera, laser disc player, PC or (when it
is released in the future) to a Digital
Video Disc player.
The projector is multi-system compatible (NTSC, PAL and SECAM) and
can connect to a variety of computer
platforms (eg VGA, Mac 13", NEC 98).
Other features include a manual zoom,
focus adjustment and volume control.
The Mitsubishi LCPC Projector has
THE “HIGH” THAT LASTS IS MADE IN THE U.S.A.
Model KSN 1141
The new Powerline series of Motorola’s
2kHz Horn speakers incorporate protection
circuitry which allows them to be used safely
with amplifiers rated as high as 400 watts.
This results in a product that is practically
blowout proof. Based upon extensive testing,
Motorola is offering a 36 month money back
guarantee on this product should it
burn out.
Frequency Response: 1.8kHz - 30kHz
Av. Sens: 92dB <at> 1m/2.83v (1 watt <at> 8Ω)
Max. Power Handling Capacity: 400W
Max. Temperature: 80°C
Typ. Imp: appears as a 0.3µF capacitor
Typical Frequency Response
MOTOROLA PIEZO TWEETERS
AVAILABLE FROM:
DICK SMITH, JAYCAR, ALTRONICS AND
OTHER GOOD AUDIO OUTLETS.
IMPORTING DISTRIBUTOR:
Freedman Electronics Pty Ltd, PO Box 3, Rydalmere NSW 2116. Phone: (02) 9638 6666.
August 1997 73
a recommended retail price of $10,999
and is available from selected electrical re
tailers. For more information,
contact Mitsubishi Electric on 1 800
811 212.
CAN interfaces
for PCs
National Instruments has announced the first available PCI-based
and ISA-based Windows 95 Plug and
Play-compatible interfaces to connect PCs to Controller Area Network
(CAN) devices. The PCI-Can (for
Windows NT/95 PCs) and AT-CAN
(for Windows 95 PCs) meet the physical and electrical requirements for
in-vehicle networks based on CAN.
The AT-CAN includes full Windows 95 Plug and Play compatibility,
giving users the benefits of automatic
configuration for easier installation
and maintenance. The PCI-CAN and
AT-CAN include NI-CAN driver software, which provides a high-level
application programming interface
(API) for reading and writing data
frames on the CAN bus. Both are
compatible with LabVIEW and
LabWindows/CVI, as well as other
KITS-R-US
RF Products
FMTX1 Kit $49
Single transistor 2.5 Watt Tx free
running 12v-24V DC. FM band
88-108MHz. 500mV RMS audio
sensitivity.
FMTX2A Kit $49
A digital stereo coder using
discrete components. XTAL
locked subcarrier. Compatible
with all our transmitters.
FMTX2B Kit $49
3 stage XTAL locked 100MHz
FM band 30mW output. Aust
pre-emphasis. Quality specs.
Optional 50mW upgrade $5.
FMTX5 Kit $98
Both a FMTX2A & FMTX2B on 1
PCB. Pwt & audio routed.
FME500 Kit $499
Broadcast specs. PLL 0.5 to 1
watt output narrowcast TX kit.
Frequency set with Dip Switch.
220 Linear Amp Kit $499
2-15 watt output linear amp
for FM band 50mW input.
Simple design uses hybrid.
SG1 Kit $399
Broadcast quality FM stereo
coder. Uses op amps with
selectable pre-emphasis.
Other linear amps and kits
available for broadcasters.
74 Silicon Chip
industry-standard programming
languages.
These products give users PCbased connectivity to communi
cations networks that are becoming
more commonplace in both test and
industrial automation applications,
including automotive testing and
diagnostics, factory automation, and
machine control.
For more information, contact
National Instruments Australia, PO
PO Box 314 Blackwood SA 5051
Ph 0414 323099 Fax 088 270 3175
AWA FM721 FM-Tx board $19
Modify them as a 1 watt op
Narrowcast Tx. Lots of good RF
bits on PCB.
AWA FM721 FM-Rx board $10
The complementary receiver
for the above Tx. Full circuits
provided for Rx or Tx. Xtals
have been disabled.
MAX Kit for PCs $169
Talk to the real world from a
PC. 7 relays, ADC, DAC 8 TTL
inputs & stepper driver with
sample basic programs.
ETI 1623 kit for PCs $69
24 lines as inputs or outputs
DS-PTH-PCB and all parts. Easy
to build, low cost.
ETI DIGI-200 Watt Amp Kit $39
200W/2 125W/4 70W/8 from
±33 volt supply. 27,000 built
since 1987. Easy to build.
ROLA Digital Audio Software
Call for full information about
our range of digital cart players & multitrack recorders.
ALL POSTAGE $6.80 Per Order
FREE Steam Boat
For every order over $100 receive
FREE a PUTT-PUTT steam boat kit.
Available separately for $19.95,
this is one of the greatest educational toys ever sold.
Box 466, Ringwood, Vic 3134. Phone
(03) 9879 5166; fax (03) 9879 6277.
Email info.australia<at>natinst.com or
http://www.natinst.com/
C&K Electronics &
Jesec Switches merge
Australian electronic component
suppliers C&K Electronics and
Jesec Switches Plus are combining
44 years industry experience with
Contactless angle
sensors
Philips has introduced
the KM11OBH/2430 and
KM11OBH/2470 angular displacement sensors, which
utilise the company’s magne
toresistive sensor technology
to produce a contactless device completely free from
wear and micro-linearity errors.
Mechanical wear and contact corrosion, which
can lead to severely impaired performance, are
the two most common problems encountered with
p o t e n t i o m e t e r- b a s e d a n g l e s e n s o r s . T h e
KM11OBH/2430 has a measurement range of 30°
and the KM11OBH/2470 has a range of 70°. Both
devices operate at temperatures between -40°C and
+125°C, making them suitable for use in automotive
applications such as engine management, safety and
driver/passenger comfort systems.
They are also small enough to be used in applications such as computer printers, medical equipment
and instrumentation equipment, as well as in general
industrial applications.
Additional information can be obtained from
Philips Components, 34 Waterloo Rd, North Ryde,
NSW 2113 or from the Philips Internet Home Page
at http://www.semiconductors.philips.com
High density
DC-DC converter
Analog Devices’ new ADDC02808
PB high-density DC-DC converter is
the first designed specifically for pulse
applications such as solid state radar
where transmit/receive (T/R) modules
are used. When fast transient response,
minimum output voltage deviations
and saving space and weight are
important, the ADDC02808PB is the
solution.
The standard ADDC02808PB operates from a 28V input bus and provides
up to 25A pulsed output current at 8V.
Peak pulse power is 200W and peak
pulse power density is more than
120W per cubic inch.
For further information on this
device, contact Hartec, 205A Middle
borough Rd, Box Hill, Vic 3128. Phone
SC
1 800 335 623.
SILICON CHIP SOFTWARE
Now available: the complete index to all
SILICON CHIP articles since the first issue
in November 1987. The Floppy Index
comes with a handy file viewer that lets
you look at the index line by line or page
by page for quick browsing, or you can
use the search function. All commands
are listed on the screen, so you’ll always
know what to do next.
Notes & Errata also now available:
this file lets you quickly check out the
Notes & Errata (if any) for all articles published in SILICON CHIP. Not an index
but a complete copy of all Notes & Errata text (diagrams not included). The file
viewer is included in the price, so that you can quickly locate the item of interest.
The Floppy Index and Notes & Errata files are supplied in ASCII format on a
3.5-inch or 5.25-inch floppy disc to suit PC-compatible computers. Note: the File
Viewer requires MSDOS 3.3 or above.
OR D ER FOR M
PRICE
❏
Floppy Index (incl. file viewer): $A7
❏
Notes & Errata (incl. file viewer): $A7
❏
Alphanumeric LCD Demo Board Software (May 1993): $A7
❏
Stepper Motor Controller Software (January 1994): $A7
❏
Gamesbvm.bas /obj /exe (Nicad Battery Monitor, June 1994): $A7
❏
Diskinfo.exe (Identifies IDE Hard Disc Parameters, August 1995): $A7
❏
Computer Controlled Power Supply Software (Jan/Feb. 1997): $A7
❏
Spacewri.exe & Spacewri.bas (for Spacewriter, May 1997): $A7
❏
I/O Card (July 1997) + Stepper Motor Software (1997 series): $A7
POSTAGE & PACKING: Aust. & NZ add $A3 per order; elsewhere $A5
Disc size required: ❏ 3.5-inch disc
❏ 5.25-inch disc
TOTAL $A
Enclosed is my cheque/money order for $A__________ or please debit my
❏ Bankcard ❏ Visa Card ❏ MasterCard
Card No.
Signature_______________________________ Card expiry date______/______
Name ___________________________________________________________
PLEASE PRINT
Street ___________________________________________________________
Suburb/town ________________________________ Postcode______________
Send your order to: SILICON CHIP, PO Box 139, Collaroy, NSW 2097; or fax your
order to (02) 9979 6503; or ring (02) 9979 5644 and quote your credit card number
(Bankcard, Visa Card or MasterCard).
✂
the announcement of their merger.
The new company, to be known as
C&K Components Plus, will have its
head office and distribution centre in
Braeside, Victoria, with sales offices
in Sydney and Adelaide and sales
agents in Queensland and WA.
C&K Components Plus plan to
expand their present range of 15,000
stock items, including switches,
connectors, enclosures, circuit protection devices, variable resistors,
sound and visual components and
general products. All items will be
supported by comprehensive product catalogs and detailed up-to-date
literature.
C&K Components Plus will also
soon be announcing its Internet web
presence on buynet at http://buynet.
com.au
Further information about C&K
Components Plus products can be
obtained by calling Sydney (02) 9635
0799, Melbourne (03) 9587 4044 and
Adelaide (08) 8363 4343. The email
address is: ckplus<at>ca.com.au
August 1997 75
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