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MARKET CENTRE Cash in your surplus gear. Advertise it here in Silicon Chip. CLASSIFIED ADVERTISING RATES VINTAGE RADIO Advertising rates for this page: Classified ads: $10.00 for up to 12 words plus 50 cents for each additional word. Display ads (casual rate): $25 per column centimetre (Max. 10cm). Closing date: five weeks prior to month of sale. To run your classified ad, print it clearly in the space below or on a separate sheet of paper, fill out the form & send it with your cheque or credit card details to: Silicon Chip Classifieds, PO Box 139, Collaroy, NSW 2097. Or fax the details to (02) 979 6503. VINTAGE RADIO SWAP meet/fair. Inc. military, amateur radio and antique sound. Sunday 23rd October, 1994 10am to 5pm. Glenroy Technical School Hall, Melbourne. Bookings: R. Howarth, PO Box 9, Junortoun 3551. Phone (054) 49 3207. _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ FOR SALE THE HOMEBUILT DYNAMO: (plans) brushless, 1000 DC watt at 740 revs. $A85 postpaid airmail from Al Forbes, PO Box 3919 - SC, Auckland, NZ. Phone Auckland (09) 818 8967 any time. Rotor magnets (3700 gauss) kit now available. FLUORESCENT INVERTER KIT (SC Feb 91) 12V or 24V/5W-21W.48V ver­ sion on request. Secondary wind, board plus components $30.00 plus P&P $4.00. Solar battery charging regulator short form kit 12V or 24V (series) (SC Jan 94) employs Mosfet to switch solar array max current 10A $54.00 plus p&p $4.00. Additional Mosfet $8.00 and Schottky diode $5.00 to make 20A regulator. Cheques and postal money orders accepted with mail orders. Send orders to Otakar Priboj, PO Box 362, Villawood, NSW 2163, Austra­lia. Phone (02) 724 3801. WEATHER FAX programs for IBM XT/ ATs *** “RADFAX2” $35 is a high res- Enclosed is my cheque/money order for $­__________ or please debit my RCS RADIO PTY LTD Card No. ✂ ❏ Bankcard   ❏ Visa Card   ❏ Master Card Signature­­­­­­­­­­­­__________________________ Card expiry date______/______ Name ______________________________________________________ Street ______________________________________________________ Suburb/town ___________________________ Postcode______________ 94  Silicon Chip RCS Radio Pty Ltd is the only company that manufactures and sells every PC board and front panel published in SILICON CHIP, ETI and EA. RCS Radio Pty Ltd, 651 Forest Rd, Bexley 2207. Phone (02) 587 3491 • • • • • • • BUSINESS FOR SALE TV, video & hifi repair – TV rental – electronic spare parts & accessories – authorised service centre for all major brands. Booming Sunshine Coast – Queensland –idyllic lifestyle. Well established with strong local reputation, consistent turno­ver with good sustained profits, centrally located ensuring “owner­-ship” of a large slice of the service and retail trade. Suit owner operator; minimal staff requirements. Turnover approx $185,000 – gross profit $100,000. Priced to sell: $120,000 WIWO. Phone Leonard Pey (074) 48 1633 or (074) 46 2732 A/H. MEMORY PRICES Building Your Speakers? Need Help? PRICES AT MAY 19TH, 1994 SIMM 1Mb x 3 1Mb x 9 4Mb x 9 4Mb (72-pin) 8Mb (72-pin) 16Mb (72-pin) 70ns 70ns 70ns 70ns 70ns 70ns $61 $63 $245 $242 $485 $960 DRAM DIP 1 x 1Mb 256 x 4 70ns 70ns $7.50 $8.00 IBM PS.2 55/65SXVP L40/N33 90/95 PS1 4Mb 4Mb 4Mb $240 $280 $250 MAC 4Mb 4Mb x 80 80ns 6Mb P’BOOK $215 $350 CO-PROCESSORS 387S/DX to 40 LASER PRINTER HP with 2Mb COMPAQ PROLINEA 8Mb TOSHIBA 2000SX 8Mb 46/1900 3.3 4Mb SUN SPARC 10/20 16Mb PCMCIA 1Mb V2 BAT SRAM 2Mb V2 BAT SRAM 2Mb FLASH RAM 20Mb SUN FLASH RAM $90 $198 $485 $680 $295 $1110 $205 $330 $345 $1500 Ring for Latest Prices 1st Floor, 100 Yarrara Rd, PO Box 382, Pennant Hills, 2120. TRANSFORMER REWINDS PELHAM ALL TYPES OF TRANSFORMER REWINDS Speaker parameters measured Boxes designed & manufactured Crossovers designed Systems for lounge, car or PA For more details contact: Australian Audio Consultants Box 1031, Aldinga Beach, SA 5173. Phone or fax on (085) 56 6370 CTOAN ELECTRONICS Sales tax 21%. Overnight delivery. Credit cards welcome. 5-Year Warranty Tel: (02) 980 6988 Fax: (02) 980 6991 • • • • Got a great idea for a new device? Don’t leave it as just an idea. Call us; we can help make is work. You describe it – we’ll design it. PO Box 211, Jimboomba 4280. Phone (07) 297 5421. TRANSFORMER REWINDS Reply Paid No.7, PO Box 1058, St Marys, NSW 2760. Ph: (02) 833 1146. Fax: (02) 623 5559. • olution, shortwave weather fax, Morse & Rtty receiving program. Suitable for CGA, EGA, VGA and Hercules cards. Needs SSB HF radio & Radfax decoder. *** “SATFAX” $45 is a NOAA, Meteor & GMS weather satellite picture receiving program. Needs EGA or VGA plus “WEATHER FAX” PC card. *** “MAXISAT” $75 is similar to SATFAX but needs 2Mb expanded memory (EMS 3.6 or 4.0) and 1024 x 768 SVGA card. All programs are on 5.25-inch or 3.5-inch disks (state which) & include documentation. Add $3 postage. Only from M. Delahunty, 42 Villiers St, New Farm, Qld 4005. Phone (07) 358 2785. NETWORK YOUR PCs with “Little Big LAN”. Share disk drives and files (multi-user record locking), CD-ROMs and printers (with spooling). Connect PCs via serial or parallel ports, Arcnet and/or Ethernet cards. Supports up to 250 computers per network for only $95 ($100 for 3.5") for a whole network. Add $4 for postage in Australia. Works with MS-DOS, DR-DOS and Windows. For more information, write to GRAN­ TRONICS, PO Box 275, Wentworth­ville 2145. Phone A/H (02) 631 1236. REPAIRS TO: Commodore 64’s and accessories; all Atari’s; Spectra Video, Spectrum and Amstrad Computers. Phone: Adelaide (08) 377 2175. VALVE AMPLIFIERS: Australian made. Mono, stereo, guitar using 2A3, 211, 6L6 or 807 valves. williamson reproductions. Parts available for DIY constructors. Circuit diagrams and construction details for many types of valve amplifiers. Valve equipment repairs. Lancroft Pty Ltd, PO Box 439, Bexley 2207. Phone (02) 567 5390. BINARY CLOCK - OCTOBER 1993: complete documentation supplied, includes introduction to binary, how it works, PLD source list­ings, conversion tables. Kit with PCB and all components $75 + $5 p&p. Optional Z frame stand (includes spacers and chassis DC connector) $25 + $5 p&p. Prototype Electronics, 1/29 Stewart St, Parra­ matta, NSW 2124. Phone (02) 683 3510; Fax (02) 630 3148. Pay by cheque, money order, credit card. SUBSTITUTE FOR A HANDFUL OF ICs: Parallax “BASIC STAMP”. A gen­er­al purpose small circuit module, it is really a 25 x 50mm board with a computer chip (4MHz PIC 16C56), EEPROM, 8 I/O pins, board space includes prototyping area. Program it on a PC (only 33 instructions) with development kit which includes one “BASIC STAMP” ($249 plus S/T & post), extra modules ($66 plus S/T & post). Send 45c stamp for more information. Parallax distribu- • • • 350 Watt Power MOSFET Amplifier Module As published in the June 1994 issue of Silicon Chip. Kit price $159.00. Postage and handling $8.00. Payment by M/C, B/C, Visa, Cheque or Money Order. 3kg O/N Air Bag $10.00 Computer & Electronic Services Pty Ltd 27 Osborne Avenue, Trevallyn Launceston, Tasmania 7250 Phone 003-34 4218; Fax 003-31 4328 tor and techni­cal support in Australia: MicroZed Computers, PO Box 634, Armi­dale, NSW 2350. Facsimile (067) 72 8987. SATELLITE TV DX SUPER RX receiver. Threshold 2.5dB. Also digital picture, sound, synchron, resolution processors. Mobile DX re­ceivers, pay TV decoders. TV, radio, picture, sound mod­ulators. Digital, analog signal meters. Send $5 for info and catalog/refundable to John Papp, PO Box 472, Sanderson, NT 0812. Fax/Ph:(089) 27 4985. BURGLAR ALARM KIT: multi-sector, microprocessor controlled (refer SILICON CHIP, Sept. 1992). Main control panel $170.00 (no case); Remote keypads $47.00 (up to 4 can be used on each panel); Rockonet 3001 PIRD (passive infrared detector) $65.00; Rockonet 6000 PIRD $72.00. P&P $9.00. M. Zenere, 82 Headingley Rd, Mt. Waver­ley, Vic. 3149. Phone: (03) 803 3535. July 1994  95 INTERNATIONAL SATELLITE SYSTEM A fully complete commer­cial auto tracking system 1 OPAC 4.5 metre, 12-segment dish. Bearing configuration, styled on a commercial unit (18 months old). Includes two heavy duty actuators, 3-platform base, 1.2 metre raisers – heavy duty. Purchased <at> $6,600.00. 1 C-band (30K) LNB & ADL RHC feedhorn with 30 metres of RG11 cable. Purchased <at> $500.00. 1 Professional commercial (microprocessor) tracking system. Onboard internal clock, internal data base, fully automated updating, etc, etc. Purchased <at> $2,500.00. 1 WINNERSAT C/Ku band 920 computer synthesized satellite receiver (on screen graphics) with positioner built in system. All adjust­able bandwidths with IR remote. Purchased <at> $750.00. 1 WINNERSAT C/Ku programmable satellite receiver with IR remote, adjustable bandwidths. Purchased <at> $700.00. 1 WINNERSAT WR-370 stero manual satellite receiver. Adjustable bandwidths (Panda). Purchased <at> $450.00. 1 Custom built receiver unit. Includes 1 Nexus commercial receiv­er, 1 adjustable bandpass filter, 1 digital videplexer and switchmode power supply. Purchased <at> $2100.00. 1 portable satellite signal strength meter. Purchased <at> $180.00. 1 vertical/horizontal detail processor (commercial grade unit). Purchased <at> $1100.00 1 JVC 9 system plus 3 video/audio inputs 52cm colour monitor/television receiver with IR remote. Purchased <at> $1500.00. 1 JVC 10-inch video/RGB monitor (selectable inputs x 2). Pur­chased <at> $1400.00. 2 9-inch Pro B/W monitors. One has audio amp. Purchased <at> $900.00. 1 Video/audio signal unit (custom built) with amps, 8 inputs V/A x 10 outputs V/A, selectable audio and video output (known as a router). Purchased <at> $2000.00 To build this advanced system cost $20,680.00. Will sell for $6,950.00 ONO (genuine reason for selling) Phone Rod on 08 387 0372. Advertising Index Altronics ................................ 74-76 Aust. Audio Consultants...............95 Av-Comm.....................................41 Computer & Elect. Services.........95 Ctoan Electronics........................95 David Reid Electronics ..............21 Dick Smith Electronics........... 10-13 Electronic Fault Info.....................71 Harbuch Electronics....................79 Instant PCBs................................95 Jaycar .............................. 45-52,67 Kalex............................................67 Macservice....................................3 McLean Automation.....................21 Nucleus Computer Services........65 Oatley Electronics.................. 60-61 PC Computers.............................16 Pelham........................................95 RCS Radio ..................................94 Resurrection Radio......................87 UNUSUAL BOOKS: Electronic Devices, Fireworks, Locksmithing, Radar Invisibility, Surveillance, Self-Protection, Unusual Chem­ istry and more. For a complete catalog, send 95 cents in stamps to Vector Press, Dept S, PO Box 434, Brighton, SA 5048. 38 Garnet Street, Niddrie 3042. Phone (03) 337 1917 (a/h), (03) 575 3349 (b/h). Fax (03) 575 3369. MICASOFT Electronics and Computing tutor program, written in UK, ideal for TAFE, schools, or individual use. Now available in Australia. Send $1.80 in stamps for demo disk (tell us what size). MicroZed Computers, PO Box 634, Armidale 2350. COMPLETE Z-80 microprocessor package plus additional experimenter boards. As new. cost $500, sell $200. Joe (03) 742 3125. CONTROL RELAYS, Robots, Radios or Railways from LPT1: of your XT to 486 PC. 64 bits. Fully expandable. Demo programs, flow charts, circuits, drivers in M.L. & Basic. Bare PCB and software $38, or demo/promo disk $2. Don McKenzie, 29 Ellesmere Crescent, Tulla­marine, Vic 3043. Phone (03) 338 6286. REAL TIME ICE!!! The only way to go. MOTOROLA 6805 EMULATOR and programmers. Prices and data from Graham Blowes, Mantis Micro Products, 96  Silicon Chip PRINTED CIRCUIT BOARDS for the hobbyist. For service & enquiries contact: T. A. Mowles (08) 326 5590. Microprocessor For Stereo Preamplifier Now back in stock: the 68HC705-C8P pre-programmed micro­pro­cessor for the Infrared Remote Controlled Stereo Preamplifier (SILICON CHIP, Sept.Oct. 1993). Also suits the Remote Volume Control (May & June, 1993). Price: $45 + $6 p+p Payment by cheque, money order or credit card to: Silicon Chip Publications, PO Box 139, Collaroy, NSW 2097. Phone (02) 9795644; Fax (02) 979 6503. Rod Irving Electronics .......... 27-31 Silicon Chip Back Issues....... 88-89 Silicon Chip Binders..................IBC Silicon Chip Bookshop.................93 Silicon Chip Projects Book......OBC Silicon Chip Software..................83 Tektronix....................................IFC Transformer Rewinds...................95 Yuga Enterprise...........................78 _________________________________ PC Boards Printed circuit boards for SILICON CHIP projects are made by: • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. • Marday Services, PO Box 19-189, Avondale, Auckland, NZ. Phone (09) 828 5730. • H. T. Electronics, 35 Valley View Crescent, Hackham West, SA 5163. Phone (08) 326 5590.