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MARKET CENTRE Cash in your surplus gear. Advertise it here in Silicon Chip. r-------------------------, CLASSIFIED ADVERTISING RATES ANTIQUE RADIO Advertising rates for this page: Classified ads: $10.00 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 the form below or on a separate sheet of paper & send it with 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. 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 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. FOR SALE TEST EQUIPMENT: (1) oscilloscope, Gosser 1049 double beam with service manual; (2) audio oscillator, AWA type 3A57150, 20Hz to 20kHz, metered output 0-15V, attenuator 5dB steps; (3) Patee VTVM; (4) RF oscillator, University Graham, 5 ranges 150kHz to 30MHz, attenuator. The lot $60 or will negotiate separately. Ring Don Clements on (02) 449 1992. Enclosed is my cheque/money order for $_ _ _ _ or please debit my 0 Bankcard O Visa Card O Master Card XI I I Signature_ _ _ _ _ _ _ _ _ _ _ Card expiry date_ _~/_ __ I I Name _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ I I Street _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ I Suburb/town _ _ _ _ _ _ _ _ _ _ _ Postcode_ _ _ _ __ I L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ JI WEATHER FAX programs for IBM XT/ ATs *** "RADFAX2" $35 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 Card No. 94 SILICON CHIP FIX-A-KIT KIT REPAIR & CONSTRUCTION 3 MONTHS WARRANTY ON REPAIRS 12 MONTHS WARRANTY ON CONSTRUCTION TECHNICAL ASSISTANCE H·vcAL ELECTRONICS D es ign. M a nufacture & Re p a ir of t;.l ec tro ni c Equipme nt (02) 633 5477 Direct CAD PCB design from your schematic, rough PCB,to ink plot negative for prototype or one-off in sing I e or doub I e sided with s ii k screens & so I der resist. NC and photoplot options available on floppies. r Prices at February 12, 1992 SIMM 1MBx9 1MBx8 4MBx9 256 X 9 (For SIP Phone (02)807 6916 O or wr I te 0 ( ~ .C ~ G . F . & M. Hughes ~ PO Box 37, Ryde PCB ART NSW, 2112 1 J~ Hercules, EGA & VGA cards respectively. $35. *** "SATFAX" $45 is a NOAA, 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 5.25inch 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. UNIVERSAL AT 1/0 CARDS: 2 x IDE Hard, 2 x HO Floppy, 2 x Ser, 1 x Par, 1 x Game, all cables & connectors. Enable/disable any feature - $55. XT/AT 102 keyboards $55. IBM printer cables $10. Plug packs 9.5VDC 1.1 A $14. Don McKenzie, 29 Ellesmere Crescent, Tullamarine 3043. Phone (03) 338 6286. INFRARED FILTER: a high-ql..(ality military grade deep infrared (IR) filter. For medium & high-power incandescent spotlights & floodlights. Approximately 130mm diameter & 6mm thick. High temperature pyrex-glass base material. Excellent for night surveillance equipment. Works with IR viewers & some video equipment. On special at $55.00. Oatley Electronics, PO Box 89, Oatley, NSW 2223. Phone (02) 579 4985. Fax (02) 570 7910. MINI INFRARED NIGHT VIEWER: as per EA, Oct. 1991 issue. A very small complete kit that includes a lens, an IR tube & an eyepiece. Simple to construct. The kit is now supplied with a high quality military inverter. Draws only 20mA from a 9V battery. Not only at the lowest price offered but we also include a free filter. $299.00. Includes the IR tube, lens, eyepiece, electronics kit, a 75mm round IR plastic filter & the case. Kit No. IRNW5. Limited stock. Certified "I MEMORY EXPANSION 100ns sons 100ns sons sons sons add $1) DRAM-DIP 1MBx 1 80ns 100ns 256 X 4 sons 41256 120ns 100ns sons 54.00 59.00 51.00 54.00 215.00 17.00 6.20 6.50 6.70 1.85 1.90 2.00 PELHAM \.. COPROCESSORS 80387-DX 25 80387-SX 16 8028710MHz 80287 To 20 240.00 145.00 100.00 130.00 FLOPPY DRIVES 3.5 Panasonic 1.44 5.25 Panasonic 1.2 80.00 92.00 EXPANSION CARDS LS 866N 32Mb OK 240.00 AST RAM plus 8Mb 375.00 BOCA AT plus 8Mb 240.00 SPECIALS Sun SLC Sharp 6220 Sharp 8081 PS/2(ALL) PS/2(ALL) Mac FX/NIX Laser Printers 4Mb 1Mb 1Mb 2Mb 4Mb 4Mb 2Mb 252.00 150.00 100.00 160.00 320.00 230.00 216.00 SOCKETS & PROC. Simm Sockets 30 x 2 Ang 6.00 Intel 80386/33 264.00 Intel 80486/33 790.00 Intel 80386/40 280.00 Sales Tax 20%. Overnight Delivery. Credit Cards Welcome 1st Floor, 100 Yarrara Road, Pennant Hills, NSW 2120. Tel (02) 980 6988 Fax (02) 980 6991 ~ , UNIDEN SCANNERS DON'T PAY MORE! 50XL ARP $299.95. Our price $211 10 memories, Lo-Hi VHF, UHF 1 OOXL T ARP $449.95. Our price $409 100 memories, Lo-Hi VHF, Air, UHF 200XLT ARP $549.95. Our Price $477 200 memories, Lo-Hi VHF , Air, UHF, 800 MHz DIGI-CART DSP BOARD For 16-bit IBM compatibles. Broadcast quality 44.1 KHz/16 bit stereo audio with audio recorder software. $1599 + Tax Custom software service for applications available. PC Computers (08) 3326513 36 Regent St Kensington SA All prices include delivery. Phone anytime today! (03) 883 9535; Fax (03) 432 0716 TopCom Communications PO Box 336, Greensborough, Vic 3088. \.. ~ TRANSFORMER REWINDS ALL TYPES OF TRANSFORMER REWINDS TRANSFORMER REWINDS p&p Australia $5; NZ (airmail) $10. Major credit cards accepted with phone & fax orders. Oatley Electronics, PO Box 89, Oatley, NSW 2223. Phone (02) 579 4985. Fax (02) 570 7910. SOLAR PANEL GIVEAWAY: brand new high-quality US-made amorphous glass solar panels. 150 x 150mm. Will deliver a full 1 watt whilst charging 6-8V batteries! Has weather protection film on rear. Reply Paid No.2, PO Box 438, Singleton, NSW 2330. Ph: (065) 761291. Fax: (065) 761003. Incredible pricing : $9 each or 10 for &75. Cert. p&p $5 on any amount. Oatley Electronics, PO Box 89, Oatley, NSW 2223. Phone (02) 579 4985. Fax (02) 570 7910. NIGHT VIEWER BARGAIN: a very small telescopic IR viewer (1/2 of a WANTED: YOUR CIRCUIT & DESIGN IDEAS Do you have a good circuit idea languishing in the ol' brain cells? If so, why not sketch it out, write a brief description & sena it to us Provided your idea is workable & original, we'll publish it in Circuit Notebook & you'll make some money. You'll also help save us from the dreadful "circuit burnout" syndrome which afflicts anyone who has to generate too many circuit ideas in too short a time. We'll pay up to $60 for a really good circuit (not too big please). So transfer your circuit to paper & send it to Silicon Chip Publications, PO Box 139, Collaroy Beach, NSW 2097. APRIL 1992 95 r----- --------------------, SILICON CHIP BINDERS l These beautifully-made binders will protect your copies of SILICON CHIP. They featu re heavy-board covers and are made from a distinctive 2-tone green vinyl that will look great on your bookshelf. Antique Radio Restorations ...... 94 Av-Comm ........... .... ................. .. 54 David Reid Electronics ..... ..... ..... . 3 Dick Smith Electronics .. ..... .. 28-29 Electronics World ......... ...... ....... .. 9 Emona Instruments ........... ... ..... 59 * 80mm internal width . * SILICON CHIP logo printed in goldcoloured lettering on spine & cover. Force Electronics ....... .. ...... ... .... 17 Geoff Wood Electronics ....... .. .. . 35 G. F. & M. Hughes ... ............ ... ... 95 Yes! Please send me _ _ _ SILICON CHIP binder(s) at $A11.95 plus $A3 p&p each (NZ $A6 p&p). Enclosed is my cheque/money order for $_ _ _ _ or please debit my 0 Visa Card All Electronic Components ..... ... 57 Altronics ....... ... ..... ... ..... ... ..... 60-63 * High quality. * Hold up to 14 issues O Bankcard Advertising Index 0 Hewlett Packard .... .. ..... ... ... .. .... IFC Hycal Instruments ...... ... ....... 43,94 Jaycar Electronics ...... ... ..... .. 45-52 J.V. Tuners .. .. ... .. .......... ... .... .... .. 41 Master Card KT Technology ... .... ... .... ......... OBC Oatley Electronics ................ 34,95 Card No. PC Computers ...... ... ............... .. 95 PC Marketplace ................... .. ... 75 Signature_ _ _ _ _ _ _ _ _ _ _ Card expiry date_ _~/_ __ Pelham ....... ............................... 95 Name _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ Peter C. Lacey Services ........... 36 Philips .. ... ........... .. .......... ..... .. .. IBC Street _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ __ _ Preston Electronics ... ........ .... .... 41 Suburb/town _ _ _ __ _ _ _ _ _ _ Postcode_ _ _ _ __ RCS Radio ..... ... ...... .... ....... ....... 81 Resurrection Radio ... .. ...... ..... ... 87 SILICON CHIP PUBLICATIONS PO Box 139, Collaroy Beach, NSW 2097, Australia. Phone (02) 979 5644 Fax: (02) 979 6503. L--------- ----------------J binocular viewer) with an objective lens and an eyepiece fitted. Supplied with a matching prefocussed IR tube that may have some minor blemishes. The scope has provision for a coaxial EHT connection and a small power supply kit will also be provided. Could be fitted into a small plastic case & fitted with a belt clip. Almost a complete partially constructed night viewer for only $199. Limited supply. Certified p&p Au stralia $5, NZ (airmail) $10. Major credit cards accepted with phone & fax orders. Oatley Electronics, PO Box 89, Oatley, NSW 2223. Phone (02) 579 4985. Fax (02) 570 7910. PCVOICE RECORDER SOFTWARE: turn your computer into an audio recorder, $25 + $3pp (VGA/EGA/CGA/ 96 SILICON CHIP Rod Irving Electronics .. .. ....... 1O, 11 68,69,82;83 Silicon Chip Back Issues ..... 88-89 Silicon Chip Binders ........... .... ... 96 Transformer Rewinds .. ...... ........ 95 MONO). MS-DOS required . Also available: PC TALKING VOLTMETER software. For project published in SILICON CHIP, Oct/Nov 1991. Plugs into the printer port of any IBM PC/XT/AT/386 or compatible. Displays voltages up to ±128V on screen, takes voltage samples over time, has 8-bit accuracy to within 1%. Combines with the PCVOICE RECORDER project to give a talking voltmeter. Available on 5¼-inch 360Kb disc plus documentation and instructions for $30 plus $3pp. Send your cheque or money order to Darren Yates , PO Box 134, French's Forest, NSW 2086. TopCom Communications .. ....... 95 VALVES: 653 Brand new valves for sale in original boxes including large quantity 6DQ6 etc. $1000. No offers. Phone (054) 94 3492. • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491 . 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.