PRODUCT SHOWCASE
Philips radio
test generator
The new PM 5330 radio test generator from Philips Test & Measurements
can meet a wide range of testing
requirements at frequencies from
100kHz to 180MHz. It offers a sweep
facility together with programmable
AM and FM, variable output levels
and optional RDS/ARI functions and
FM stereo modulation.
An FM stereo option provides both
stereo multiplex and RF-modulated
signals. In the FM stereo mode, both
internal and external modulation can be
applied over a 20Hz to 15kHz frequency range, with selectable 50µs or 75µs
pre-emphasis and a choice of stereo and
left or right channel only signals.
Both internal AM and FM modulation are programmable between 20Hz
and 20kHz, or can be applied from
external sources.
The sweep function is ideal for
checking filters, and offers ten calibrated sweep widths from 10kHz to
10MHz, with a clear indication of the
centre frequency by a dot marker on
the display. The lower sweep width of
10kHz and slow sweep are intended
for narrow bandpass testing such as in
SSB applications.
The PM 5330 has been designed for
very simple operation. A large backlit
LCD display shows all parameter and
function settings while conventional
multiple pushbuttons are replaced by
a large multifunction rotary control,
with a limited number of keys for mode
0-30V power supply
has adjustable current
In the past if you wanted an
economically priced power supply
with a reasonable voltage range,
there was only one solution – you
built it yourself. That option is still
available and indeed is still often
the only way for more powerful
units. However, this solidly built
power supply is available at quite
an attractive.
It has fine and coarse voltage
adjustment controls to give zero to
30V DC output as well as adjusta-
ble output current limit anywhere
from zero to 3 amps. A green LED
shows when the supply is in "constant voltage" mode and when the
and parameter selections.
Setting of parameters can be done
by direct entry of the desired values
at the numeric keypad, incrementing/decrementing a displayed value
using the rotary control, or using the
variable-resolution up/down step adjustment function, which allows increments as small as 10Hz for frequency
and 0.1dB for output level.
The optional RS232 or IEEE-488
interfaces allow the PM 5330 to be
used in remote-controlled test systems. The IEEE-488 interface allows
the generator to be integrated into automated GPIB measurement systems,
while the RS232 interface provides
a cost-effective solution for "standalone" automation.
Both interfaces allow full remote
programming, with facilities for
downloading of user-defined test and
test routines.
The PM unit also has a built-in frequency counter with a range of 10Hz
to 200MHz with a 5½-digit display.
For further information, contact
Philips Test & Measurement, 34 Waterloo Rd, North Ryde, NSW 2113. Phone
(02) 888 8222.
AM486 microprocessors
now available
Advanced Micro Devices has announced it has begun shipments of
current limit cuts in, the green LED
goes out and a red LED comes on to
indicate "constant current" mode.
Load regulation is quite good at
around 2% or better and hum and
noise output is typically less than
1mV peak-peak at all settings.
Overall dimensions of the supply are 178mm wide, 148mm high
and 310mm deep, including knobs
and rear heatsink. Mass is 5.5kg
and unit comes with a detachable
3-core flex and IEC female plug.
Priced at just $279, the power
supply is available from all Jaycar
Electronics stores (Cat No MP-3090).
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Neat & nifty tool kit
This neat little tool wallet has
been made up to meet the needs
of students doing electronics
courses, after consultation with
TAFE colleges. It comprises a pair
of side-cutters, long-nose pliers,
adjustable wire strippers, tweezers,
Phillips and straight bladed screw
drivers, utility knife and a pair of
jewellers screwdrivers with 2mm
Phillips and straight blades. The
whole lot is housed in a well made
zippered vinyl case.
The price is attractive too, just
$30 including sales tax. The toolkit
its AM486 microprocessors. These include 33MHz, 40MHz, and clock-doubled 50MHz 486 DX devices.
Developed using the same design
methodology as the AM386 microprocessor family, AM486 devices
announced are compatible, plug-in
replacements for 486DX products
currently used in IBM-compatible
personal computers. The AM486 microprocessor family also is compatible
with the existing base of software
applications used in millions of PCs
in service worldwide.
Initial members of the AM486 microprocessor family incorporate Intel
microcode. AMD will continue development of its "clean room" microcode
in order to achieve technological
independence.
Volume production of the AM486DXLV microprocessor, designed
to offer the rapidly growing mobile
computing market high performance
and low power consumption of longer
is on sale from All Electronic Components, 118-122 Lonsdale Street,
Melbourne, Vic 3000. Phone (03)
662 3506.
battery life, will begin in July. The 3.3V
AM486DXLV device will be offered at
no price premium over the standard
5V product.
For further information, contact
VSI Promark Electronics, 16 Dickson
Ave, Artarmon, NSW 2064. Phone (02)
439 4655.
New monitors from
Mitsubishi Electric
Mitsubishi Electric has announced
a range of new high performance
computer monitors that exceed world
health and safety standards and are
backed by a 3-year warranty.
The company has also announced
a $1000 trade-in on any computer
monitor against a new Mitsubishi
Electric Diamond 17-inch or 20-inch
monitor.
The new Mitsubishi 17-inch and
20-inch colour models incorporate
dynamic beam focusing for crisp edge-
VIDEO
& TV
SERVICE PERSONNEL
TV & VIDEO FAULT LIBRARIES
AVAILABLE AS PRINTED MANUALS $90 EACH + $10 DELIVERY
BOTH MANUALS VIDEO & TV
$155 + $15 DELIVERY
OR AS A PROGRAM FOR IBM COMPATIBLES $155 + $10 DELIVERY
FOR MORE INFORMATION
CONTACT
TECHNICAL APPLICATIONS FAX / PHONE (07) 378 1064
PO BOX 137 KENMORE 4069
84 Silicon Chip
to-edge displays, anti-glare screen
coating and a wide auto-scanning
horizontal frequency range.
The new monitors also incorporate high refresh rate capabilities for
flicker-free displays and a Mitsubishi
Diamond Match Colour Calibration
System that enables users to set up, on
screen, colour parameters to precisely
match hard copy output or Pantone
colours for desktop publishing applications.
For further information, contact
Richard Allen, Mitsubishi Electric
Australia, 348 Victoria Rd, Rydalmere,
NSW 2116. Phone (02) 684 7200.
Complete stereo preamp
with midrange control
This well made PC board assembly
has all the circuitry for a simple stereo
control unit. It includes a phono preamplifier with RIAA compensation
for a magnetic cartridge and a tone
control stage with treble, midrange
and bass controls. There is provision
for a loudness switch and a tone defeat switch.
Phono sensitivity is quoted as
2.5mV at 1kHz for 1V output while
line sensitivity is 100mV for 1V output. Harmonic distortion is quoted as
.005% at rated output. Bass and treble
Prizes awarded for
birthday celebration
On March 17th, some of the
NSW prize winners and sponsors
gathered for a presentation at the
Pasadena Restaurant on Sydney's
Pittwater.
The Ford Festiva was awarded
along with prizes from Jaycar
Electronics, Philips Test & Measurement, A-One Electronics. Av-
Wim Jonganeelen and his wife came down from Bargo
to be presented with their new Ford Festiva hatchback.
(car courtesy of Titan Ford, Brookvale.)
boost is ±10dB at 50Hz and 15kHz respectively while midrange boost and
cut is ±5dB at 1kHz.
The assembled board comes with a
single instruction sheet with a circuit
diagram showing how the unit would
be wired to provide input selection,
tape monitor switch and a suitable
power supply.
The circuit shows the quad op amps
as being TL084s or 074s but the sample
board was fitted with TL074s which
are preferable because of their lower
noise figure.
Neatly packaged in clear plastic, the
complete board (Cat S0307) is available from A-One Electronics Pty Ltd,
432-434 Kent St, Sydney, NSW 2000.
Phone (02) 267 4829.
Tektronix TDS 820
scope now with FFT
Tektronix has announced the addition of Fast Fourier Transform (FFT)
and a new high-performance active
probe for the TDS 820 Digitising
Oscilloscope. The FFT is part of an
advanced maths option for the TDS
820 that includes integration and
differentiation.
Comm Electronics and Emona
Instruments.
All other prizes have since been
despatched directly, to the prize
winners announced in the April
1993 issue.
Discussing the Av-Comm satellite receiver prize are,
from left to right, Bruce Routley of Jaycar, prize winner
R. Coleman and Garry Cratt of Av-Comm.
The combination of the TDS 820's
8GHz (6GHz with delay lines) acquisition bandwidth, 0.4 picosecond
timing resolution, and simultaneous
time domain and FFT displays makes
it ideal for oscillator characterisation,
Telecom installation and maintenance
and high-speed digital design and
characterisation applications.
With the advanced maths option,
basic spectral magnitude, frequency,
and phase measurements can be made
using on-screen cursors. Results can
be displayed linearly in volts RMS,
logarithmically in dB RMS, in degrees or in radians. Users can select
from four FFT windowing functions:
Rectangular, Hamming, Hanning,
and Blackman-Harris,
depending on measurement requirements.
The proprietary TriStar digital signal processor gives the TDS
820 very fast update
rate for live display of
all waveform processing
functions, including
FFT, integration, and
differentiation.
The TDS 820 now
comes standard with two of the new
P6207 high-impedance active probes.
When combined with a TDS 820, the
P6207 offers 3.5GHz (typical) system
bandwidth, 100kW input resistance
and less than 400 femtofarads (0.4 pF)
input capacitance.
Using the TDS 820's built-in trigger
pickoff, users can now acquire highspeed signals without an external
trigger and make precision timing
measurements without concern for
changing the circuit's behaviour due
to probe loading.
For further information, contact
Tektronix Australia Pty Ltd, 80 Waterloo Rd, North Ryde, NSW 2113. Phone
(02) 888 7066 or Fax (02) 888 0125.
June 1993 85
