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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). June 1993  83 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