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PRODUCT SHOWCASE Night vision viewer from DSE While SILICON CHIP has published build-it-yourself night viewers in the past, Dick Smith Electronics now have Apple Nighteyes as a commercial product. It is envisaged that it will be popular with boat users venturing out after dark. Other people who may be interested include hunters, wildlife and bird watch­ers, caving enthusiasts and security companies. The unit is manufactured by Zenit who are well-known for photo­graphic lenses. Apple Nighteyes has a lens magnification of 3.8 times while the internal photomultiplier gives a light amplifica­tion of 10,000 times. It also comes with an IR LED illuminator to allow observation in total darkness. Apple Nighteyes is priced at $999, comes with a 12-month replacement warranty and is available from all Dick Smith Elec­tronics stores. Macservice garage sale How can a business have a garage sale? There is one way to find out and that is to visit the premises of Mac­service Pty Ltd. They are having a ware­house sale of “as traded” and imported stock on Sunday, 5th May from 9.00 AM to 5.00 PM. Prices start from a dollar! Interstate and country buyers do not need to miss out as they can phone for a list of gear on sale. The sale will be at the Macservice warehouse, 20 Fulton St, South Oakleigh, Vic 3167. Phone (03) 9562 9500; fax (03) 9562 9590. Digital multimeter has computer interface The Nilsen BX-905AC digital multimeter offers voltage, cur­ rent, resistance, frequency and capacitance measurement, as well as dB calculation. It features manual or auto-ranging modes and is provided with an RS-232 serial output to connect it to a comput­ er. Software is provided to enable it to 88  Silicon Chip be used for data logging and in manufacturing. dB calculation is presented as dBm; ie, relative to 0.775V RMS into a 600-ohm load. The BX-905AC has relative value display and a memory capable of storing and recalling five data points. Other features include min/ max value storage, low/high/ pass display, and automatic power off after 20 minutes of non-use. Voltage measurements can range up to 1000V DC or 750V AC, current up to 20A AC/DC, resistance to 40MΩ, capacitance to 100µF and frequency to 1.999MHz. For further information, contact Nilsen Technologies, 150 Oxford St, Colling­wood, Vic 3066. Phone (03) 9419 9999; fax (03) 9416 1312. Fluke RLC meter tests at up to 1MHz This new RLC meter from Fluke, the PM 6306, can test components at any frequency between 50Hz and 1MHz. This is desirable for testing a wide range of components, particularly those used in switchmode power supplies, and low value capacitors and inductors. In addition, the PM 6306 features continuously variable AC and DC voltage scales so voltage behaviour of components can be analysed. An internal bias source can provide up to 10V DC for testing electrolytic capacitors and semiconductor junctions or up to 40V DC can be applied from an external source. A deviation mode makes component comparisons quick and efficient, providing a percentage readout of the different between the measured component and the initial reference. Fully automated testing with up to 10 measurements per second can be handled when the PM 6306 is April 1996  89 AUDIO MODULES Over-temperature alarm from Hypec Manufactured in Australia Harbuch Electronics Pty Ltd 9/40 Leighton Pl. HORNSBY 2077 Ph (02) 476-5854 Fx (02) 476-3231 The Alert 110 is an over temperature alarm that warns of inadequate cooling before damage occurs to a computer. It sets off an alarm when the internal temperature reaches 43°C (110°F), allowing the user to shut the system down before damage occurs. It is simple to install, only requiring to be plugged into a spare power connector. It is fixed inside the lid of the case with double-sided tape. Three versions are available: with over temperature alarm; with over temperature and cooling fan failure alarm; and the TwinAlert with over broadcast quality connected to a PC via an IEEE-488 interface. An RS-232 interface is also available and Windows-based Component View software will shortly be available. For further information contact Philips Scientific & Indus­ trial, 34 Waterloo Rd, North Ryde, NSW 2113. Phone (02) 888 8222; fax (02) 888 0440. Instrumentation CD-ROM is free National Instruments has announc­ ed a free CD-ROM containing information for engineers with an interest in measurement and control applications. The Windows-compatible CDROM, entitled “Instru­pedia”, features more than 60 tutorial and application KITS-R-US PO Box 314 Blackwood SA 5051 Ph 018 806794 TRANSMITTER KITS $49: a simple to build 2.5 watt free running CD level input, FM band runs from 12-24VDC. •• FMTX1 FMTX2B $49: the best transmitter on the market, FM-Band XTAL locked on 100MHz. CD level input 3 stage design, very stable up to 30mW RF output. $49: a universal digital stereo encoder for use on either of our transmitters. XTAL locked. •• FMTX2A FMTX5 $99: both FMTX2A & FMTX2B on one PCB. FMTX10 $599: a complete FMTX5 built and tested, enclosed in a quality case with plugpack, DIN input •connector for audio and a 1/2mtr internal antenna, also available in 1U rack mount with balanced cannon input sockets, dual VU meter and BNC RF $1299. Ideal for cable FM or broadcast transmission over distances of up to 300 mtrs, i.e. drive-in theatres, sports arenas, football grounds up to 50mW RF out. FMTX10B $2599: same as rack mount version but also includes dual SCA coder with 67 & 92kHz subcarriers. • AUDIO Audio Power Amp: this has been the most popular kit of all time with some 24,000 PCBs being •soldDIGI-125 since 1987. Easy to build, small in size, high power, clever design, uses KISS principle. Manufacturing rights available with full technical support and PCB CAD artwork available to companies for a small royalty. 200 Watt Kit $29, PCB only $4.95. AEM 35 Watt Single Chip Audio Power Amp $19.95: this is an ideal amp for the beginner to construct; uses an LM1875 chip and a few parts on a 1 inch square PCB. Low Distortion Balanced Line Audio Oscillator Kit $69: designed to pump out line up tone around studio complexes at 400Hz or any other audio frequency you wish to us. Maximum output +21dBm. MONO Audio DA Amp Kit, 15 splits: $69. Universal BALUN Balanced Line Converter Kit $69: converts what you have to what you want, unbalanced to balanced or vice versa. Adjustable gain. Stereo. • • •• COMPUTERS I/O Card for PCs Kit $169: originally published in Silicon Chip, this is a real low cost way to interface •to Max the outside world from your PC, 7 relays, 8 TTL inputs, ADC & DAC, stepper motor drive/open collector 1 amp outputs. Sample software in basic supplied on disk. PC 8255 24 Line I/O Card Kit $69, PCB $39: described in ETI, this board is easy to construct with •onlyIBM3 chips and a double sided plated through hole PCB. Any of the 24 lines can be used as an input or output. Good value. 19" Rack Mount PC Case: $999. •• Professional All-In-One 486SLC-33 CPU Board $799: includes dual serial, games, printer floppy & IDE hard disk drive interface, up to 4Mb RAM 1/2 size card. PC104 486SLC CPU Board with 2Mb RAM included: 2 serial, printer, floppy & IDE hard disk $999; VGA •PC104 card $399. KIT WARRANTY – CHECK THIS OUT!!! If your kit does not work, provided good workmanship has been applied in assembly and all original parts have been correctly assembled, we will repair your kit FREE if returned within 14 days of purchase. Your only cost is postage both ways. Now, that’s a WARRANTY! KITS-R-US sell the entire range of designs by Graham Dicker. The designer has not extended his agreement with the previous distributor, PC Computers, in Adelaide. All products can be purchased with Visa/Bankcard by phone and shipped overnight via Australia EXPRESS POST for $6.80 per order. You can speak to the designer Mon-Fri direct from 6-7pm or place orders 24 hours a day on: PH 018 80 6794; FAX 08 270 3175. 90  Silicon Chip temperature alarm at 43°C followed by system shutdown at 48°C. The Alert 110 is priced at $32.50 plus sales tax while the other versions are priced at $52.50 plus sales tax. For further information, contact Hypec Technology Group, PO Box 438, West Ryde, NSW 2112. notes on computer based systems for instrument con­trol, data acquisition, analysis and pres­ent­ation. Also featured are more than 500 hardware and software pro­ducts for 20 industry standard computers. For more information, contact Nilsen Instruments Australia Corporation, PO Box 466, Ringwood, Vic 3134. Phone (03) 9879 9422. Micro inspection camera with light source How many times have you wished you had a tiny CCD camera so you could look into inaccessible places in equipment, down pipes or in cavity walls. Now there is the Dyna Image DM 340C micro head CCD video camera which comes with a 3m cable. This has an illuminated head and is fitted with a 5mm focal length F5 lens. This has a 38mm best focus and a minimum working distance of 15mm. Magnification on a 14-inch monitor is about seven times. Illumination is provided by built-in LEDs which may be switched off. A 12mm diameter 45° mirror adaptor is available for side viewing. The DM340C consists of a main case which connects to the CCD sensor/lens head via a 5mm dia­ meter 3-metre long cable The camera head is 12mm in diameter and 50mm long. Power requirements are 12V DC at 160mA, rising to 240mA with the LEDs on. The video output is 1V p-p standard CCIR composite video at 75-ohm impedance. For further information, contact Allthings Sales & Service, PO Box 25, Westminster, WA 6061. Phone (09) 349 9413; fax (09) 5905.