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MARKET CENTRE Cash in your surplus gear. Advertise it here in Silicon Chip. FOR SALE ance. Don McKenzie, 29 Ellesmere Crescent, Tullamarine 3043. 2.8Mb BACKPACK EXTERNAL disc drive for PC/XT/AT/PS1/PS2 etc. No internal connection . Runs off compatible printer port. Printer still supported. Simple installation. Suit laptops or any PC upgrade. 3.5-inch 2.8Mb drive accepts 1.4Mb and 720Kb discs. $599. 1.2Mb drive accepts 360Kb discs. $499. Prices include tax, postage & insur- WEATHER FAX programs for IBM XT/ ATs *** "RADFAX2" is a high resolution, shortwave weather fax, Morse & RTTY receiving program. Needs CGA, SSB HF radio & Radfax decoder. Also "RF2HERC", "RF2EGA" & "RF2VGA", same as RADFAX2 but suitable for Hercules, EGA & VGA cards respectively. $35. *** "SATFAX" is a NOAA, r-------------------------, I CLASSIFIED ADVERTISING RATES Advertising rates for this page: Classified ads - $7.00 for up to 15 words plus 40 cents for each additional word. Display ads (casual rate) - $20 per column centimetre (Max. 10cm). Closing date: five weeks prior to month of sale. To run your classified ad, print it clearly on a separate sheet of paper & send it with this form & your cheque or credit card details to : Silicon Chip Classifieds, PO Box 139, Collaroy Beach, NSW 2097. Or fax the details to (02) 979 6503. 0 Visa Card 0 Master Card Card No. Signature _ _ _ _ _ _ __ _ _ _ Card expiry date_ _~/_ __ Name _ _ _ _ _ _ _ _ _ _ __ _ __ _ __ _ _ _ __ Street _ __ _ __ _ __ _ _ _ _ _ _ _ _ _ _ _ _ __ Suburb/town _ _ __ _ _ _ _ _ _ _ Postcode_ _ __ _ _ PROFESSIONAL KITS & products. Amplifiers, power supplies, test equipment, PC driven devices & surplus parts. Send SASE for list to: Al Younger, 5/22 Albert St, Edgecliff, NSW 2027. f I I I I I I I I I L-------------------------~ 94 SILICON CHIP IBM COMPATIBLE computer kits & accessories. Button spike protector $37.00. 6-socket power boards with surge/spike protection $49.00. Pack/ post $3.00. Send for a free price list. M.T.S. Electronics, PO Box 1013 Taree, NSW 2430. Phone (065) 53 1296. PC VOICE RECORDER SOFTWARE. Project published in SILICON CHIP, August 1991. Plugs into the printer board of any genuine IBM PC/XT/AT/ 386 or compatible. Record up to 20 seconds of sound, save it to disc & replay it in the future. Software only available on 5.25-inch 360Kb disc plus documentation & instructions for $25 plus $3. Talking Clock software also available - turns your computer into a talking timepiece. $15 plus $3 p&p. (VGA, EGA, CGA, Mono). Send cheque or money order to Darren Yates, PO Box 134, French's Forest, NSW 2086. Enclosed is my cheque/money order for $_ _ _ _ or please debit my 0 Bankcard Meteor & GMS weather satellite picture receiving program. Uses EGA & VGA modes, needs EGA or VGA colour monitor & card, plus "WEATHER FAX" PC card. $45. *** All programs are on 5.25-inch or 3.5-inch discs (state which) & include documentation. Add $3 postage. Only from M. Delahunty, 42 Villiers St, New Farm, 4004 Old. Phone (07) 358 2785. OSCILLOSCOPE: Dual trace 200MHz HP1715A, delayed timebase, as new condition. One only $2100. Insurance & delivery: $25. Oatley Electronics, PO Box 89, Oatley, 2223. Phone (02) 579 4985. VISIBLE LASER DIODES: Incredibly priced kit based on a 3mW 670nm visible laser diode. These are generally considered to have relatively infinite life and are all tested! Supplied with a heatsink, suitable drive electronics that works from a 3-4.5V battery, and a col- limator which will take a little setting up, no casing included. You could pay more than $300 for a laser pointer that uses these basic components. A bargain at $94 for all of the mentioned components. $5 certified p&p. Check availability before ordering. Oatley Electronics, PO Box 89, Oatley, 2223. Phone (02) 579 4985. INFRARED LASER DIODES: Based on a brand new 5mW 780nm IR laser diode. Visible in low light so alignment is simple. Supplied with a heatsink, suitable drive electronics (works from a 34.5V battery) and a collimator which will take a little setting up, no casing included. Excellent for IR sights, data links, high quality audio links, security perimeter protection , etc. Experimenter's delight! Ask for simple related related circuit & PCB layout. Bargain at $49 for all the mentioned components. $5 certified p&p. Oatley Electronics, PO Box 89, Oatley, 2223. Phone (02) 579 4985. LASER BARGAIN: Supplied with a 1 mW HeNe tube that has had a little use and is fully guaranteed. Supplied with our latest universal laser power supply. Bargain at $99 for the pair. Oatley Electronics, PO Box 89, Oatley, 2223. Phone (02) 579 4985. INFRARED NIGHT VIEWER: Not a complete kit but just the absolute essentials - an IR image converter tube and a ready-made power supply. The supply has approximate dimensions of 105 x 56 x 37mm, draws approx. 35mA from a 9V battery, and can power any IR tube. The tube is a 6032A and the instructions are provided. Giveaway at $150 for the pair. $5 certified p&p. Major cards accepted with phone and fax orders. NZ air-mail $10. Oatley Electronics, PO Box 89, Oatley, 2223. Phone (02) 579 4985. Fax (02) 570 7910. SPECIALS: CRO valve 3BP1 $28; transmitter valve 083-300 $15; 3-port circulator 820-960MHz $58; fibre optic cable, 15 metres, $9. We stock a wide range of components and electronic valves. Mail order welcome. D. Dauner TRANSFORMER REWINDS ALL TYPES OF TRANSFORMER REWINDS TRANSFORMER REWINDS Reply Paid No.2, PO Box 438, Singleton, NSW 2330. Ph: (065) 761291. Fax: (065) 761003. r "I MEMORY EXPANSION Prices at July 10th 1991 DRAM DIP ZIP. SIMM & SIP SPEED (ns) TYPE 120 2.20 1.80 100 2.35 2.00 2.50 6.10 80 70 4164 2.20 2.40 41256 2.75 41464 7.30 7.90 411000 36.00 1MBx4 (Static) 256K X 9 14.00 20.00 21.00 58.00 68.00 78.00 1MB x 9 272.00 299.00 4MB x 9 Simm Sockets 30 x 1 Vertical 1.70 Simm Sockets 30 x 2 Angle 3.50 Simm Sockets 30 x 2 Vertical 3.20 PELHAM \.. CO-PROCESSORS INTEL PCBs for all SILICON CHIP projects made to order. Prototype & kit repair service available. Hours 10-5 Wednesday to Friday, 9-12 Saturday. ETS, PO BOX 491, NOARLUNGA CENTRE, SA 5168. IIT 120.00 125.00 160.00 150.00 180.00 188.00 185.00 265.00 265.00 300.00 350.00 Sales Tax 20%. Overnight Delivery. Credit Cards Welcome 1st Floor, 100 Yarrara Road , Pennant Hills, NSW 2120. Tel (02) 980 6988 PRINTED CIRCUIT BOARDS CYRIX 8087 (fits all 8088's) 80287-10 80287-XLT (laptops) 80287-XL (up to 20MHz) 387SX16 387SX20 387DX16 387DX20 387DX25 387DX33 387DX40 Fax (02) 980 6991 ~ FIX-A-KIT $20.00 PER HOUR LABOUR 3 MONTHS WARRANTY ON REPAIRS 12 MONTHS WARRANTY ON CONSTRUCTION Service to most types of electronic equipment TECHNICAL ASSISTANCE HYCAL ELECTRONICS Design, Manufacture & Repair of Electronic Equipment Trading Hours 8am to 3pm, Monday to Friday (02) 633 5477 Phone: (08) 382 8919 SCANNERS MAX 1/0 Board Kit $149.00. Built & Tested $269.00. • 7 x Relays SPST 2 amps each • 8 x Switch inputs (TTL) • 1 x OAC (Digital to Analog converter) • 1 x ADC ( Analog to Digital converter) • 4 x Motor Drive outputs (40mA ea.) • 1 x Programmable timer output. MAX includes a 20-page manual with all schematics, parts layout etc. , a 360K PC-compatible floppy with diagnostic and sample software in GW-Basic. MAX runs from a PC compatible printer port for full compatibility with a large range of computers. Same day dispatch of orders. Credit cards or personal cheques welcome. Phone (08) 332 6513 or Fax (08) 364 0902 (24 hours) PC Computers, 36 Regent St, Kensington, SA. Electronics, 51 Georges Crescent (PO Box 42), Georges Hall, NSW 2198. Phone (02) 724 6982. Fax 725 7850. UNUSUAL BOOKS: Fireworks, locksmithing, radar invisibility, surveillance, unusual chemistry and more. Send SASE for catalog to Vector Press, Dept. S, PO Box 434, Brighton SA 5048. CORNER REFLECTOR antenna kit. The original SILICON CHIP design. Outperforms commercial units at a fraction of the cost. Comes complete with all parts, cut and predrilled . Easy to as- Top quality Uniden, factory authorised dealer. Range from $210.05 for 50XL, covers 10, 6, 2, 70cm, 10 memories, ideal for amateur, to $475.52 for 200XLT, 200ch, covers all major bands, including 800-900MHz. Also the cheapest prices on marine equipment. Update to SSB for $238.26. Fibreglass 27MHz antenna $40.13. Post & pack $10 under$250. Cash, cheque& credit card accepted. TopCom Radio Communication, PO Box 336, Greensborough, Vic 3088. Phone (03) 883 9535. semble in under 1 hour. $65.00, including postage anywhere in Australia. Send cheque or money order to: BDK Audio , PO Box 139, Landsborough , Old, 4550. Phone(074)941928. COMPUTER BARGAINS this month. Floppy drives, quality Japanese , 360Kb $99.00; 1.2Mb $116.00; 1.44Mb $115.00; plus $6 postage. Ball/mouse with pad $39.00; optical mouse with driver, image software $75; plus $6.00 postage. VGA cards, 16bit/512Kb, exp. to 1Mb, $190.00. Tseng Labs 4000VGA continued next page OCTOBER 1991 95 Getting the PIF with Windows - continued from page 44 Advertising Index sign and comments can be included provided the comment line is preceded by a semi-colon(;). The following sections, not necessarily in this order, appear in the WIN.INI file: Windows - affects an assortment of elements in your Windows environment, including statements that can automatically load and run applications. Desktop - controls the appearance of the screen background (desktop) and the positioning of windows and icons. Extensions - associates specified types of files with corresponding applications. . Intl- describes how to display items for countries other than the United States. Ports - lists all available output ports. Fonts - describes the screen font files that are loaded by Windows. PrinterPorts - lists active and inactive output devices that can be accessed by Windows. Devices-lists active output devices that provide compatibility with Windows 2.x applications. Colors - defines colours for parts of the Windows display. Additional sections may be inserted by other applications - you need to consult the application's documentation for information on those sections,. When changes are made using the control panel, they are made to this file automatically. This file can be edited manually to make changes that cannot be made using the control panel. System.Ini This file (see Fig.4) primarily contains settings that allow you to customise Windows to meet your system's hardware needs. The following sections appear in the SYSTEM.INI file (again, not necessarily in this order). Boot - lists drivers and Windows modules. Boot.Description - lists the name of devices; can be changed using Windows setup. Keyboard - contains information about the keyboard. Non WindowsApp - contains information used by non-Windows applications. Standard - contains information used by Windows in Standard mode. 386Enh-contains information used by Windows in 386 enhanced mode. If a setting is changed incorrectly in SYSTEM.INI, Windows may become disabled the next time the program is started. Many settings in this file should be changed via the programs supplied with Windows (eg, Windows Setup, Control Panel, etc). Detailed instructions for altering the WIN.INI and SYSTEM.INI files are contained in text files usually located in the Windows directory. Next month, we look in detail at the options available and how you can customise the INI files. SC Market Centre - continued from page 95 card, 512Kb, exp. to 1Mb, $215.00 plus $6 .00 postage. 16MHz CPU 286 motherboard, hardware EMS, OK, $199.00 plus $10.00 postage. Mini tower case with power supply, $215.00 plus $15.00 postage. Phone for other bargains. Cheque and money orders only to: BOK Audio, PO Box 139, Landsborough, Old, 4550. Phone (074) 94 1928. ANTIQUE RADIO ANTIQUE RADIOS: vintage valve wireless sets, wind-up gramophones, phonographs, vintage musical ware, rare records, 45s, LPs, 78s bought, sold, 96 SILICON CHIP traded. Antique Sounds, 476 Pacific Highway, Belmont 2280. Phone (049) 45 9977. Open Thursday 10am-6pm, Friday 10am-5pm, Saturday 10am4pm. ANTIQUE RADIO restorations. Your one-stop radio repair shop. Specialising in restoring vintage radios including chassis rewiring, re-condensing, quality new parts, valves, valve sockets, speakers, power & audio transformers. Secondhand radio dials & parts for most brands & models. About 400 radios in stock for sale, restoration & parts. Every restored wireless is covered by a 2year warranty on parts & labour. We Altronics ...................... .... 28-31,78 Antique Radio Restorations ...... 96 Av-Comm ... ...... ........... ...... ..... ... 89 Back Issues ... ... .......... ......... 40,41 David Reid Electronics ......... . IFC, 1 Dick Smith Electronics ............. 5-7 Electronic Solutions .................. 25 Electronic Toy Services ............. 95 Electronics World ....................... 11 Elmeasco .................................. 79 Geoff Wood Electronics ............ 67 Harbuch Electronics ............ .. .. ,. 78 Hycal Instruments ..... .. .............. 95 Jaycar Electronics ................ 45-52 J.V. Tuners ................... ......... .... 23 Kalex ......................................... 75 Oatley Electronics ..................... 71 Obi at Pty Ltd .......................... OBC PC Computers .... .. .................... 95 Pelham ..................... ....... ....... ... 95 RCS Radio ................................ 71 Resurrection Radio ................... 75 Rod Irving Electronics .......... 38,39 58,58,84,85 Silicon Chip Binders ..... .. .......... IBC Subscriptions ............................ 93 TopCom Radio Comm . .............. 95 Transformer Rewinds .... .. .......... 95 PC Boards Printed circuit boards for SILICON CHIP projects are made by: • Electronic Toy Services, 2/111 Glynville Drive, Hackham West, SA 5163. Phone (08) 382 8919. • Jemal Products, 5 Forge St, Welshpool, WA 6106. Phone (09) 350 5555. • Marday Services, PO Box 19-189, Avondale, Auckland, NZ. Phone 88 5730. • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. restore damaged woodwork & cabinets & French polish (approx. 40 coats). Vintage car radios available for sale or restoration. Repairs done on tape decks & amplifiers. Open Sat. 10am-5pm; Sun. 12.30-5pm. 109 Cann St, Bass Hill, NSW 2197. Phone (02) 645 3173 BH or (02) 726 1613 AH. SC