Silicon ChipMarket Centre - January 1990 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Putting speed into perspective
  4. Feature: Checking VCR Tape-Loading Problems by Peter M. Hansen
  5. Feature: Update On High Definition TV by Leo Simpson
  6. Vintage Radio: Obtaining the right spare parts by John Hill
  7. Project: Active Antenna For Shortwave Listening by Greg Swain
  8. Project: Phone Patch For Radio Amateurs, Pt.1 by John Clarke & Greg Swain
  9. Project: A High Quality Audio Oscillator by Leo Simpson
  10. Serviceman's Log: Sing it again Sam(sung) by The TV Serviceman
  11. Project: Speed Controller For Ceiling Fans by John Clarke
  12. Feature: Amateur Radio by Garry Cratt, VK2YBX
  13. Feature: Computer Bits by Jennifer Bonnitcha
  14. Feature: Remote Control by Bob Young
  15. Feature: The Evolution of Electric Railways by Bryan Maher
  16. Feature: Modifying The Studio 200 Amplifier by Leo Simpson
  17. Market Centre
  18. Subscriptions
  19. Outer Back Cover

This is only a preview of the January 1990 issue of Silicon Chip.

You can view 45 of the 104 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Items relevant to "Active Antenna For Shortwave Listening":
  • Silicon Chip article scan, January 1990 - Active Antenna For The Shortwave Bands (AUD $10.00)
Articles in this series:
  • Phone Patch For Radio Amateurs, Pt.1 (January 1990)
  • Phone Patch For Radio Amateurs, Pt.2 (February 1990)
Articles in this series:
  • A High Quality Audio Oscillator (January 1990)
  • A High Quality Audio Oscillator, Pt.2 (February 1990)
Articles in this series:
  • Amateur Radio (January 1988)
  • Amateur Radio (January 1990)
  • A look at signal tracing; Pt.2 (May 1997)
  • A look at signal tracing; Pt.3 (June 1997)
Articles in this series:
  • Computer Bits (July 1989)
  • Computer Bits (August 1989)
  • Computer Bits (September 1989)
  • Computer Bits (October 1989)
  • Computer Bits (November 1989)
  • Computer Bits (January 1990)
  • Computer Bits (April 1990)
  • Computer Bits (October 1990)
  • Computer Bits (November 1990)
  • Computer Bits (December 1990)
  • Computer Bits (January 1991)
  • Computer Bits (February 1991)
  • Computer Bits (March 1991)
  • Computer Bits (April 1991)
  • Computer Bits (May 1991)
  • Computer Bits (June 1991)
  • Computer Bits (July 1991)
  • Computer Bits (August 1991)
  • Computer Bits (September 1991)
  • Computer Bits (October 1991)
  • Computer Bits (November 1991)
  • Computer Bits (December 1991)
  • Computer Bits (January 1992)
  • Computer Bits (February 1992)
  • Computer Bits (March 1992)
  • Computer Bits (May 1992)
  • Computer Bits (June 1992)
  • Computer Bits (July 1992)
  • Computer Bits (September 1992)
  • Computer Bits (October 1992)
  • Computer Bits (November 1992)
  • Computer Bits (December 1992)
  • Computer Bits (February 1993)
  • Computer Bits (April 1993)
  • Computer Bits (May 1993)
  • Computer Bits (June 1993)
  • Computer Bits (October 1993)
  • Computer Bits (March 1994)
  • Computer Bits (May 1994)
  • Computer Bits (June 1994)
  • Computer Bits (July 1994)
  • Computer Bits (October 1994)
  • Computer Bits (November 1994)
  • Computer Bits (December 1994)
  • Computer Bits (January 1995)
  • Computer Bits (February 1995)
  • Computer Bits (March 1995)
  • Computer Bits (April 1995)
  • CMOS Memory Settings - What To Do When The Battery Goes Flat (May 1995)
  • Computer Bits (July 1995)
  • Computer Bits (September 1995)
  • Computer Bits: Connecting To The Internet With WIndows 95 (October 1995)
  • Computer Bits (December 1995)
  • Computer Bits (January 1996)
  • Computer Bits (February 1996)
  • Computer Bits (March 1996)
  • Computer Bits (May 1996)
  • Computer Bits (June 1996)
  • Computer Bits (July 1996)
  • Computer Bits (August 1996)
  • Computer Bits (January 1997)
  • Computer Bits (April 1997)
  • Windows 95: The Hardware That's Required (May 1997)
  • Turning Up Your Hard Disc Drive (June 1997)
  • Computer Bits (July 1997)
  • Computer Bits: The Ins & Outs Of Sound Cards (August 1997)
  • Computer Bits (September 1997)
  • Computer Bits (October 1997)
  • Computer Bits (November 1997)
  • Computer Bits (April 1998)
  • Computer Bits (June 1998)
  • Computer Bits (July 1998)
  • Computer Bits (November 1998)
  • Computer Bits (December 1998)
  • Control Your World Using Linux (July 2011)
Articles in this series:
  • Remote Control (October 1989)
  • Remote Control (November 1989)
  • Remote Control (December 1989)
  • Remote Control (January 1990)
  • Remote Control (February 1990)
  • Remote Control (March 1990)
  • Remote Control (April 1990)
  • Remote Control (May 1990)
  • Remote Control (June 1990)
  • Remote Control (August 1990)
  • Remote Control (September 1990)
  • Remote Control (October 1990)
  • Remote Control (November 1990)
  • Remote Control (December 1990)
  • Remote Control (April 1991)
  • Remote Control (July 1991)
  • Remote Control (August 1991)
  • Remote Control (October 1991)
  • Remote Control (April 1992)
  • Remote Control (April 1993)
  • Remote Control (November 1993)
  • Remote Control (December 1993)
  • Remote Control (January 1994)
  • Remote Control (June 1994)
  • Remote Control (January 1995)
  • Remote Control (April 1995)
  • Remote Control (May 1995)
  • Remote Control (July 1995)
  • Remote Control (November 1995)
  • Remote Control (December 1995)
Articles in this series:
  • The Evolution of Electric Railways (November 1987)
  • The Evolution of Electric Railways (December 1987)
  • The Evolution of Electric Railways (January 1988)
  • The Evolution of Electric Railways (February 1988)
  • The Evolution of Electric Railways (March 1988)
  • The Evolution of Electric Railways (April 1988)
  • The Evolution of Electric Railways (May 1988)
  • The Evolution of Electric Railways (June 1988)
  • The Evolution of Electric Railways (July 1988)
  • The Evolution of Electric Railways (August 1988)
  • The Evolution of Electric Railways (September 1988)
  • The Evolution of Electric Railways (October 1988)
  • The Evolution of Electric Railways (November 1988)
  • The Evolution of Electric Railways (December 1988)
  • The Evolution of Electric Railways (January 1989)
  • The Evolution Of Electric Railways (February 1989)
  • The Evolution of Electric Railways (March 1989)
  • The Evolution of Electric Railways (April 1989)
  • The Evolution of Electric Railways (May 1989)
  • The Evolution of Electric Railways (June 1989)
  • The Evolution of Electric Railways (July 1989)
  • The Evolution of Electric Railways (August 1989)
  • The Evolution of Electric Railways (September 1989)
  • The Evolution of Electric Railways (October 1989)
  • The Evolution of Electric Railways (November 1989)
  • The Evolution Of Electric Railways (December 1989)
  • The Evolution of Electric Railways (January 1990)
  • The Evolution of Electric Railways (February 1990)
  • The Evolution of Electric Railways (March 1990)
Items relevant to "Modifying The Studio 200 Amplifier":
  • Silicon Chip article scan, July 1988 - Studio 200 Stereo Control Unit Pt2 (AUD $10.00)
  • Silicon Chip article scan, June 1988 - Studio 200 Stereo Control Unit Pt1 (AUD $10.00)
Articles in this series:
  • Studio 200 Stereo Control Unit (June 1988)
  • Studio 200 Stereo Control Unit (July 1988)
  • Modifying The Studio 200 Amplifier (January 1990)
CEN'l Cash in your surplus gear. Advertise it here in Silicon Chip. MEMORY CHIPS CLASSIFIED ADVERTISING COUPON 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 . If you use a PO Box number, you must include your permanent address and phone number for our files. We cannot accept ads submitted without this information. To run your own classified ad, put one word on each of the lines below and send this form with your payment to: Silicon Chip Classifieds, PO Box 139, Collaroy Beach, NSW 2097. PLEASE PRINT EACH WORD SEPARATELY, IN BLOCK LETTERS PRICES JANUARY 1990 or SIPPS DIP ZIP 2 4 3 5 9 x 1MbLP 9 x 1Mb HP IBM 9x1MBLPIBM 8 x 1Mb LP 7 8 9 10 11 12 13 14 15 ($7.00) 16 ($7.40) 17 ($7.80) 18 ($8.20) 19 ($8.60) 20 ($9.00) 21 ($9.40) 22 ($9.80) 23 ($10.20) 24 ($10.60) 25 ($11.00) 26 ($11.40) 27 ($11.80) 28 ($12.20) 29 ($12.60) 30 ($1300) Name ..... .... ..... .. .... .... ..... ....... . ··•· ··· ······· ·· ·· ····· ·•··••· · ······ ·· ·.. , - , ,- , . , .. ... Street Postcode Suburb/Town Enclosed is my cheque or money order for$ .. Bankcard D Visa Card D MasterCard . .. . or please debit my D Card No __,__--"'------_L_-'---'----'-- '---1 -'--~-'-__,__--"'------_L_-'---'--- - ' - ~ Signature ..... ............... .... ........ . . . ..... ..... ... ..... Card expiry date ....... / ...... ./ .. . FOR SALE WOW! DRAM PRICES have dropped. Now is the right time to build your own FIX-A-KIT $15 PER HOUR LABOUR NO CHARGE FOR KITS THAT CAN'T BE REPAIRED 3 MONTHS WARRANTY ON REPAIRS CONSTRUCTION .AVAILABLE HYCAL INSTRUMENTS DESIGN, MANUFACTURE, REPAIR OF ELECTRONIC EQUIPMENT (02) 633 5897 parallel printer buffer. Advertised since January 1985 . Featured in AEM in January 1987 and SILICON CHIP in October 1989. Over 2500 units sold. Same kit, just updated. Now 8K-1 M. No obligation. For a free catalog send a 41 c stamp to Don McKenzie, 29 Ellesmere Crescent, Tullamarine 3043. PUBLIC DOMAIN & shareware software for IBM & compatibles . Catalog disc $4.00 . Also TV-REPAIR.TXT which covers faults in most popular brands. It can save hours of work. On a 5 ¼-inch disc. Just $28.00 inc. p/post. Martins Television Service, PO Box 1013, Taree, NSW 2430. 156.00 185.00 210.00 149.00 411000 (1 Mb) 414256 (1 Mb) 41256 41464 (256) 4164 2.50 15.00 16.00 4.25 4.60 2.80 41256 411000 (1 Mb) 4.00 18.00 5.00 20.00 Sales tax 20% 6 Speed 120ns 100ns sons Prices (excluding tax) 38.00 42.00 50.00 Chip type SIMMS 9 x 256 3.70 168.00 250.00 160.00 15.80 17.00 4.90 5.00 Overnight delivery Credit cards welcome DISCOUNTS FOR DEALERS PELHAM Tel (02) 427 0011 Fax (02) 428 5460 FUJITSU MEMORY DRAM DIP 256K x 1 1OOns DIP 256K x 4 8Dns . . . ZIP 256K x 4 8Dns. .. DIP 1 MB x 1 sons . ... . .. ZIP 1 MB x 1 sons . . .. . SRAM DIP BK x 8 1OOns DIP 32K x 8 1OOns DRAM CONTROLLER MB1430/1 P $3.95 $16.00 $16.50 $15.00 $15.50 $ 4.50 $12.00 $15.50 PACIFIC MICROELECTRONICS PHONE (02) 481 0065 FAX (02) 484 4460 Add Sales Tax 20 % COMPONENTS: 256K 1 20ns DRAM $10; 64K 150ns $4.86. 27128 EPROM $9.50; 27256 $11; 27512 $19. Also TTL, linear, diodes, transistors. Send SSAE to Enersun Electronics, 34 Orangedale Rd , Lesmurdie, WA 6076 . Phone (09) 291 8678. SATFAX: WEATHER SATELLITE picture receiving program for IBM XT/AT. Displays in 64 colours. Needs EGA colour monitor & card, AM demodulator & ADC interface. $45 plus $3 postage . RADFAX2: HF WEATHER FAX, Morse & RTTY receiving program for IBM XT/AT . Needs CGA, SSB HF, FSK/tone JANUARY 1990 103 r~---------------------i FREEPOST SUBSCRIPTION COUPON To: Freepost 25, Silicon Chip Publications, PO Box 139 Collaroy Beach, NSW 2097, Australia. NO POST AGE STAMP REQUIRED IN AUSTRALIA. Start in, _ __ __ _ __ D Renewal [J New subscription Name_ __ __ __ _ _ _ _ _ __ __ _ _ _ _ _ __ (PLEASE PRINT) Street _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ Suburb/town _ _ _ _ _ _ _ _ _ _ _ _ _ Postcode _ _ __ 1 year (12 issues) D $A42 Australia NZ & PNG (airmail} 0 Overseas surface mail D $A62 D $A 120 Overseas airmail 2 years (24 issues) D $A84 D $A130 D $A130 0 $A240 $A65 Enclosed is my cheque/money order for $ _ _ _ _ or please debit my □ Bankcard Card No . D Visa Card D MasterCard '--I--'-------''--'-I___,I I I ] I'----'-------''--'----'I .__I --'------'--'-__J Signature _ _ _ _ __ __ _ _ __ Card expiry date _ __,_ _ L _______________________ J r~---------------------, SILICON CHIP BINDERS Yes I Please send me _ _ __ SILICON CHIP binder(s} at $A 11 .95 plus $A3 p&p each (NZ p&p $A6} Nam e_ __ _ _ __ _ _ __ _ _ _ _ _ __ _ _ __ _ Advertising Index Allied Capacitors .................. 95 Altronics ...... .. .... .. ... ....... 78-81 Board Solutions ........ ... ....... IFC Dauner Electronics ... .... ..... .. 1 7 David Reid Electronics ......... 8 ,9 Dick Smith Electronics ..... 36-4 1 Electronic Solutions ....... . 24,25 Energy Control ..... ...... ........ . 96 Geoff Wood Electronics ........ 13 Harbuch Electronics ........ 91,97 HycaJ Instruments ...... ........ 103 Jaycar Electronics ..... .. ... 49-56 Lawson Radio . . . . . . . . . .. . . .. .. .. . . 1 7 Pacific Microelectronics . 9 7, 1 03 PC Marketplace ... ... ..... ... 68-69 Pelham ... ........... .. .... ......... 103 RCS Radio .. ................... .. ... 99 Rod Irving Electronics ... .. 92,93 Silicon Chip Binders .. ....... . OBC Trackmate Australia ...... .. ........ 3 PC Boards Printed circuit boards for SILICON CHIP projects are made by: • ACS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. • Jemal Products, 5 Forge St, Welshpool , WA 6106. Phone (09) 350 5555 . • Marday Services, PO Box 19-189, Avondale, Auckland, NZ. Phone 88 5730. (P LEASE PRINT ) Street _ __ _ _ __ __ _ _ _ __ __ _ _ _ _ _ __ Suburb/town, _ __ __ _ _ __ _ __ Postcode _ _ _ __ _ En closed is my cheque/money order for$ _ ___ or please debit my r I Bankcard I I Visa Card □ ACTIVE TRANSMISSION line stereo speakers. Includes preamp. $760 .00. Send SAE to 36 Palmer St, Nambucca Heads, NSW 2448. MasterCard BOOKS & PLANS Signature __ _ _ __ __ __ ___ Card expiry date_~-- L-- -------- -------~-----J dec od er. Also " RF2HERC " & " RF2EGA", same as RADFAX2 but suitable for Hercules & EGA cards respectively. $35 plus $3 postage. All programs are on 5.25 -inch 360K floppy disc & include full documentation. Only from M. Delahunty, 42 Villiers St, New Farm , Old 4005 . Phone (07) 358 2785. RESISTORS, 1 % METAL film, 0.6 watt. Finest German quality, 7c each, 104 SILICON CHIP $6 per hundred, any mixed values . SAE for free sample & data sheet. Also BUX80 $7, 2N3055 $2.35, BC547 12c, 2N3019 $1.20, HEF4050B 80c, 1 0nF greencap 20c, 1 00nF monolithic 1 5c, 220nF 630 volt polycarbonate $2. P&P NSW $2 .50 , interstate $3.50 . Extended Pulse Burn Electronic Ignition: full kit $70 , fully built· and tested $99 postpaid. Chipspeed Electronics, PO Box 337, Wentworthville , NSW 2145. BUILD A COMPUTER CONTROLLED micro robot with step by step instructions on how to make the electronic interface to connect the robot to a computer. A computer program is also included. Send cheque or money order for $9 .95 to L.R. Barnett, PO Box 187, St L:ucia University, Old 4067. WORK WANTED ELECTRONIC TECHNICIAN 23 currently repairing hifi equipment seeks employer willing to train in all aspects of TV and for video repair . Phone (02) 327 1694. Ben.