This is only a preview of the December 1996 issue of Silicon Chip. You can view 28 of the 104 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. Items relevant to "Build A Sound Level Meter":
Items relevant to "Build An 8-Channel Stereo Mixer; Pt.2":
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PRODUCT SHOWCASE
200MHz TekScope from Tektronix
Tektronix has announced
the THS730A, the top of
the range oscilloscope/
DMM in its TekScope family
of products. The THS730A
model operates at 200MHz,
with 1Gs/s sampling rate
and features the Tektronix
exclusive Isolated Channel
Architecture for user and
circuit safety as well as wide
bandwidth.
Developed for electronics design
and test engineers, as well as for field
troubleshooting, the THS730A offers
high speed dual channel/dual digitiser
measurement and triggering capabili
ties for quick timing error detection.
The THS730A utilises the TekScope
graphical user interface (GUI).
Other features of this oscilloscope
include comprehensive and advance
triggering, glitch capture, dB and dBm
measurements.
Other members of the THS700
oscilloscope family include the THS
STEPDOWN
TRANSFORMERS
60VA to 3KVA encased toroids
Harbuch Electronics Pty Ltd
9/40 Leighton Pl. HORNSBY 2077
Ph (02) 9476-5854 Fx (02) 9476-3231
94 Silicon Chip
710A, THS720A and THS720P. The
THS720P, designed for electrical
service and power electronics testing,
can make measurements to 1kV RMS.
For further information, contact
Tektronix Australia Pty Ltd, 80 Waterloo Rd, North Ryde, NSW 2113. Phone
(02) 9888 0100; fax (02) 9888 0125.
Thingamebobs
& Douvres
MicroZed Computers has released
two kits for making prototypes. Intended for use with BASIC Stamp
control computers, these kits are designed to minimise soldering, speed
prototyping time and allow reuse of
prototypes.
Stamp boards, like most other small
computers, come with a 0.1-inch matrix of plated through holes. Soldering
and unsolder
ing more than a few
times deteriorates the prototype area
of the board. MicroZed’s Thingamebob
wiring kit is a low-cost, ready-made
solution to match the Stamp’s header
strip connections.
The basic wiring kit has 20 x 150mm
coloured wires, two each of the 10
colours used for resistor values. Each
wire is terminated with a single pin
plastic housed socket for slipping
onto a header pin. A feature of the
Thingamebob kit is that a selection of
multiple pin housings are supplied, so
that a multi-pin socket can be made.
A 40-pin single row header strip
is supplied, so that the idea may be
interfaced to “breadboard” style proto
typing kits, used to connect to other
circuits, or to “daisy chain” Thinga
mebob wires, where multiple power,
common or communication lines are
needed.
Five spare header connecting
sockets are supplied, to use
on your own wires. Recommended maximum current
capacity for Thinga
mebob
wires is 1000mA. Warning:
Thingamebobs are not suit
able for use on 240V mains
wiring.
Douvres for Stamps is a
small kit of simple circuits,
already wired and ready for
attachment to the header
pins. Each Douvre kit contains seven circuits: a piezo
sounder, a thermistor circuit,
a potentiometer circuit, a
pushbutton circuit and three
LED circuits (red, green and
orange).
Purchasing a Douvres kit
allows a novice user to learn
and use Stamp commands
within an hour of opening
a kit. Professional users, on
the other hand, will find that
they eliminate the tedium
of search
ing for parts and
making up mundane circuits.
Packed in a small reusable
plastic box, Thingamebobs
are priced at $24.00 and Douvres $34.00, including sales
tax. Quantity and tax exempt
prices are available.
Contact MicroZed Computers (067) 722 777 (or see the
advertisement in the Market
Place of this issue).
If you are seeing a blank page here, it is more
than likely that it contained advertising which
is now out of date and the advertiser has
requested that the page be removed to prevent
misunderstandings. Please feel free to visit the
advertiser’s website:
www.emona.com.au/
Component
counting scales
Manual component counting for batching or stock-take
is one of the big time-wasters
in the electronics industry.
Fortunately, most electronic
components are very nearly
identical in weight, allowing
them to be easily counted by weight.
The PS1015 is a high resolution,
portable counting scale. A rechargeable battery is installed to allow a
full day’s work, before overnight
recharging with the power pack supplied. An internal resolution of 40mg
ensures accurate counting of small
components and pins used in many
products. The maximum capacity of
1.5kg allows counting of some of the
larger components, including electrolytic capacitors, or the large quantities
found in some bulk packs.
The three panel display shows
total weight, unit weight and current
count simultaneously. Back lighting
provides for easy viewing, even in the
dim back corners of some stores. When
not in use, the display can be folded
down for storage and transport.
The measuring tray is 230 x 280mm,
large enough to accommodate a wide
range of containers. The one-touch
Tare button returns the display to zero
for counting after a new container is
placed on the platform.
For further information, contact
Computronics International Pty Ltd,
31 Kensington St, East Perth 6004.
Phone (09) 221 2121; fax (09) 325 6686.
December 1996 95
PIC development
tool kit
The universal and affordable ICEPIC
tool kit, for the Microchip range of PIC
microcontrollers, includes 20MHz
in-circuit emulation, a simulator, a
programmer and an assembler. The
package presents emulation data by
their symbolic names, allows assembling and automatic back notation of
edited error-report files, and generates
extensive assembly warnings to prevent those pitfalls.
The tool kit runs on an IBM compatible PC. System requirements are
386+, DOS, mouse, printer port and
a small amount of extended memory
under himem.sys or equivalent.
The user-screen presents all information required for emulation and
simulation and provides immediate
access to the accompanying PICASM
assembler and user-supplied editor.
A multi-function oscillator is included. The user can select the clock
source to be a user-supplied crystal
or oscillator, a special clock signal located on the target board, or the stable
(5kHz- 20MHz) VFO on the ICE card.
The VFO frequency is selected in four
Programmable video
generator
Leader Instruments has released a
new programmable video generator,
the LT 1610. The unit can drive a
wide range of displays from LCD to
CRT and can be easily controlled
from an external personal computer
through an RS232C interface.
The LT 1610 is provides full digital 8-bit 120MHz output of dot clock
and analog RGB 150MHz output of
dot clock. It enables easy programming of the following functions
under the Windows environment:
horizontal timing, vertical timing,
output conditions and output patdecades and can be fine adjusted, with
the ICEPIC screen acting as an accurate
digital frequency meter.
An on-board switching power
supply generates all the re
quired
voltages from an external 12-24VDC
or AC power source. The ICE card
communicates bi-directionally with
a printer port on the user’s PC. This
link transfers operational code, target
ICEPIC - In Circuit Emulation for Microchip PIC
FREE - 30 Day Money Back Guarantee !!
MADE BY ELECTRONIC EMULATION CORP.
Non-intrusive realtime in-circuit emulations up to 20MHz. Downloads
in under 2 seconds. Conditional assembling and include files. Page,
bank or segmentation error checking. View any register, or state, in
multiple windows. User-friendly 8051-type source code instruction
option. Microchip & Parallax syntax compatible assembler. Single step,
run to breakpoint, or run continuously. Edit errors in listing file & back
notate to source. Realtime & transparent emulator with no register
loss. Full source code debugging with register & bit symbolic names.
Change a register, value, or port in decimal, hex, binary, ASCII. Easy
switch between emulator, simulator or editor & assembler.
Now Only $
1,200:00
FREE delivery anywhere in Oz!, Order one NOW !
Neil Kirkness, 29 Pacific Sands, Poinciana Rd, Holloways Beach QLD 4878.
Tel: (070) 55-0242, Fax: (070) 55-9077,
E-mail: nwk<at>ozemail.com.au
( Shipped direct to you, import levies are not included ) Includes:-
Simulator, Emulator, 16/17Cxx Assembler, 16C5x ICE pod.
1 year’s FREE software upgrades! Unconditional 30 day refund!
96 Silicon Chip
terns. It is also possible to draw
patterns using a graphics function.
For further information, contact
Stantron Australia Pty Ltd, Suite 1,
Unit 27, 7 Anella Ave, Castle Hill,
NSW 2154. Phone (02) 9894 2377;
fax (02) 9894 2386.
emulation code and emulation information back and forth. Downloading
the ICE operational code from the PC
to the ICE card ensures easy upgrading
in the field as further enhancements
become available.
For further information, contact Neil
Kirkness, 29 Pacific Sands, Poinciana
Road, Holloways Beach, Qld 4878.
Phone (070) 55 0242; fax (070) 55 9077.
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.
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.
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