A Trip to Ch Ina!

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A Trip to Ch Ina! www.elektor.com JULY/AUGUST 2008 AUS$ 16.95 - NZ$ 21.50 - SAR 99.95 - US$ 15.95 £ 5.80 electronics worldwide SCRATCH a trip to China! AND WIN or one of the marvellous prizes from our scratch lottery! SUPERSIZE SUMMER ISSUE with more than 100 circuits, ideas & tips R34 Water Tank Level Kits Be one of the PIC Based Water Tank Telemetry Base Station for first to get our Level Meter Kit Water Tank Level Meter brand new colour KC-5460 £29.00 + postage & packing KC-5461 £23.25 + postage & packing This PIC-based unit uses a pressure sensor to monitor This Base Station is used with the telemetry version catalogue. It’s bursting water level and will display tank level via an RGB LED at of the KC-5460 water tank level meter. It has an the press of a button. The kit can be expanded to include inbuilt 433MHz wireless receiver and can handle with over 800 new and optional wireless remote display panel that can data transmissions from up to 10 level meters and monitor up to ten separate display the results on a 2-line 32-character LCD products, all with tanks (KC-5461) or you module. Kit includes silk screened PCB, case, PDS pricing and in can add a wireless electronic components, receiver module and the RF remote controlled transmitter upgrade for one tank full colour. mains power switch level meter. Remote (KC-5462) to control electric pump remote water control option pumps. Kit includes available. electronic components, Requires Car Kits case, screen printed PCB 9-12VDC 100mA and pressure sensor. plugpack. Fuel Cut Defeat Kit KC-5439 £6.00 + post & packing This cheap and simple kit enables you to eliminate this LED Water Level Indicator MKII Kit NEW & factory fuel cut and go beyond the typical 15-17PSI KC-5449 £10.25 + postage & packing IMPROVED factory boost limit. The kit simply intercepts the MAP This simple circuit illuminates a string of LEDs to quickly indicate the water sensor signal, and trims the signal voltage above 3.9V to level in a rainwater tank. The more LEDs that illuminate, the higher the water avoid the ECU cutting the fuel supply to the engine. level is inside the tank. The input signal is provided by ten sensors located Kit includes PCB with in the water tank and connected to the indicator unit via-light duty figure-8 overlay & all specified cable. Kit supplied with PCB with overlay, machined case with electronic screen printed lid and all electronic components. components. Requires 12-18V AC or DC 500mA plugpack. Studio 350 - High Power Amplifier Flexitimer/Interval Timer KC-5372 £55.95 + post & packing KC-5464 £8.75 + post & packing Studio Quality, Low Noise, Low Distortion. The Studio 350 Here's a new and completely updated version of the very 12-24V High Current Motor power amplifier will deliver a whopping 350WRMS into 4 popular low cost 12VDC electronic timer. It is link Speed Controller Kit ohms, or 200WRMS into 8 ohms. It offers some real grunt programmed for either a single ON, or continuous ON/OFF KC-5465 £29.00 + post & packing without any compromise, using 8 (yes, EIGHT!) 250V cycling for up to 48 on/off time periods. Selectable Want to control a really big DC motor? This design will 200W plastic power transistors - four MJL21193/4 periods are from 1 to 80 seconds, minutes, or hours and control 12 or 24VDC motors at up to 40A continuous. The complementary pairs to be precise. It is super quiet, with it can be restarted at any time. Kit includes PCB and all speed regulation is maintained under load, so the motor a signal to noise ratio of -125dB(A) at full 8 ohm power. specified electronic components. speed is maintained even under heavy load. It also Harmonic distortion is fantastic - just 0.002%, and features automatic soft-start, fast switch-off, a 4-digit frequency response is almost flat (less than -1dB) LED 7-segment display to show settings, an overload between 15Hz and 60kHz!. We have mentioned the power, warning buzzer and a low battery alarm. All control but we forgot to give you the music power figures of tasks are monitored by a microcontroller, 240W* into 8 ohms and 480W* into 4 ohms. Kit supplied so the functionality is in short form with PCB and electronic components. extensive. Kit contains PCB Kit requires heatsink and +/- 70V power supply (a and all specified suitable supply is described in the instructions). electronic • Power figures applicable when described power supply components. is used. How To Order Radar Speed Gun Mk2 KC-5441 £29.00 + post & packing Post and Packing Charges We have improved and refined this kit since it was published and it is now even more stable and accurate. Order Value Cost Order Value Cost •ORDER ON-LINE If you're into any kind of racing like cars, bikes boats or £10 - £49.99 £5 £200 - £499.99 £30 •ALL PRICING IN even the horses, this kit is for you. Kit includes PCB and £50 - £99.99 £10 £500+ £40 POUNDS STERLING all electronic components. £100 - £199.99 £20 Max weight 12lb (5kg). Heavier parcels POA. •MINIMUM ORDER Minimum order £10. ONLY £10 Note: Products are despatched from Australia, so local customs duty and taxes may apply. How to order: Call Australian Eastern Standard Time Mon-Fri Phone: 0800 032 7241 Fax: +61 2 8832 3118 Email: [email protected] Post: P.O. Box 107, Rydalmere NSW 2116 Australia Expect 10-14 days for air parcel delivery Check out the Jaycar range in your FREE Catalogue - logon to www.jaycarelectronics.co.uk/elektor 0800 032 7241 or check out the range at (Monday - Friday 09.00 to 17.30 GMT + 10 hours only) For those who want to write: www.jaycarelectronics.co.uk PO Box 107, Rydalmere NSW 2116 Sydney AUSTRALIA 0807_elektor_adv_UK.indd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| COMPILERS | BOOKS &"1!"$&1".&1 0!1&1$'-#1(,$" Scratch-and-win with Elektor! Join the lottery and qualify for a 10-day trip to China worth £3,000 This year’s edition of Summer Circuits is quite special. Apart from a vast number of circuits and ideas we present a scratchcard lottery unique to electronics magazine publishing. The hidden number on the scratchcard on the opposite page may win you a trip to China! Or an oscilloscope, a development kit, a voucher, Elektor Credits and lots more. Elektor editors have phoned their contacts in the trade and industry to request sponsorship for this special event. The response was overwhelming. For example, National Instruments have sponso- red 8 LabVIEW packages complete with USB data The main prize acquisition modules, representing a total value of £18,500! Agilent kindly added a fantastic Join the scratchcard lottery and win a portable oscilloscope worth £1,300 to our stock unique trip to China. Visit the Great Wall of prizes. Fluke obliged by allowing us to give — discover the culture of this extraordinary away one of their digital multimeters worth £460. country. Besides, the trip allows a peek into Elektor themselves added a little something to China’s electronics industry. As part of the the stock of prizes: an ElekTrack unit that allows trip you will visit a trade fair, a number of you to fi nd back your caravan at all times, or product manufacturers as well as some of indeed any other vehicle or valuable object. Also the largest electronics shops in the world. from Elektor are sets of E-credits and a number After the visit, we’re sure a wondrous world of vouchers that allow you has opened up for you. Main prizes worth in pick your own prize from excess of £40,000 the Elektor Shop. Agilent U1604A handheld oscilloscope type, worth £1,300 ( 1,700) Fluke 87V/E2 multimeter kit, worth £460 ( 600) 8 pcs NI LabVIEW with NI USB-6009 data acquisition card, worth £2,300 ( 3,000) each spread krasactie UK.indd 2 04-06-2008 14:37:10 Scratch-and-win with Elektor! Join the lottery and qualify for a 10-day trip to China worth £3,000 Scratch and enter a draw for prizes worth £40k+ ! Winning was never easier.
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