VK2TIP Ian Purdie's electronics tutorial radio design pages for amateur, ham radio, electronic project enthusiasts as well as for the electronic hobbyist and for home learning to design your own electronic projects

Square Wave Signal Generator - Build a basic first class electronic hobbyist test instrument - ideal for trouble shooting. Includes a how to use guide. Excellent beginner project to start your collection of amateur-radio-equipment. Like most presentations on this site LONG but quite interesting. REVISED circuit values. Radio Projects Radio Telescope - In response to some considerable interest I have posted a project for you to construct a 30 Mhz radio telescope. Passive Antenna Re-radiators - Again in response to some considerable interest I have posted some project ideas for receiving difficulties for you to construct passive antenna re-radiators or "sort" of Q multipliers. Science Fair Projects Science Fair Project Ideas - Again in response to a lot of email questions from both students and parents I have put together a page of science fair project ideas covered by this site. These projects also appear elsewhere on my comprehensive site but I've been asked to group them together under the one heading of science fair projects. Electronics Tutorials - Basics (and in this order) 1.   Radio Terminology - learn the basics, learn what's what! get a basic understanding of all the major terms used in ham radio and electronics 2.   Basic Electronic Units - learn the basics of those important components Inductance, Capacitance and Resistance - VERY LONG 3.   Radio Basics - learn the basics at the necessary level to follow the later advanced topics. Begin to understand LC, reactance, impedance, even Q and other important basic concepts. Includes a great Javascript LC calculator I've written to work out L or C from resonant frequency! Antennas, some rules of thumb for beginners - Every now and then somebody asks for antenna suggestions. Quite often these people asking about antennas are beginners who are afraid of making the wrong choice - a contibution on antennas by James R. Duffey KK6MC/5 aka Dr. Megacycle. Strong Recommendations The very best reference and technical books Ian Purdie, VK2TIP can recommend - If you are serious about learning electronics and advancing either your career or hobby this is the place to look. the best radio - electronics-projects magazine in the world - Check this out. Excellent value for such a low subscription! Advanced Electronics - start here Amplifier design - Part 1 - learn how to design both a.c. amplifiers and r.f. amplifiers Amplifier design - Part 2 - using emitter degeneration Amplifier design - Part 3 - using emitter degeneration AND feedback Buffer Amplifier design - - to buffer low level stages before succeeding amplification Small Signal Amplifier design - - to follow the buffered low level stages before power amplification Short wave rgenerative receiver project PCB also available. From my new site. A regenerative radio receiver is unsurpassed in comparable simplicity, weak signal reception, inherent noise-limiting and agc action and, freedom from overloading and spurious responses. The regenerative radio receiver or, even super-regenerative radio receiver or, "regen" if you prefer, is basically an oscillating detector receiver. A.M. Radio design - the basics of a.m. radio design Part 1 A.M. Radio design - the basics of a.m. radio design Part 2 F.M. Radio design - the basics of f.m radio design Part 1 F.M. Radio design - the basics of f.m radio design Part 2 Active Receiving Antennas - a discussion on some of the principles and justifications behind the design of active receiving antennas for radio projects. Design of RF Oscillators - a discussion on some of the principles and justifications behind the RF design and construction of radio frequency oscillators Design of Voltage Controlled Oscillators - a discussion on some of the principles and justifications behind the design of voltage controlled oscillators or VCO's. Design of Crystal Oscillators - a brief discussion on some of the principles and justifications behind the design of crystal oscillators. Radio Terminology - basic terms for newcomers to radio projects, ham radio, and electronic tutorials to get to know and understand for your electronics-projects High pass LC filter design - by popular demand learn how to design high pass LC filters - Part 1 L.C. Filter design - a comprehensive electronic tutorial for everybody into ham radio or the electronic hobbyist. This LC and crystal filter software was written by Neil Heckt of Almost All Digital Electronics as an aid for filter designers to simply plug in various filter parameters and hey presto! there is your finished design. From my new site I will present you with the design example of a crystal filter of the crystal ladder filters variety as designed on my evaluation copy of the downloaded software. Double Balanced Mixer design - an electronic tutorial on double balanced mixers Balun design - an electronic tutorial discussing baluns MORE AGAIN NEXT COLUMN

Mostly FREE downloads. From my new site (in a new page) and I personally use and have virtually EVERY item here. If I don't use it, it will not appear here. CARE TO BE A PRACTICAL SUPPORTER OF THIS SITE? As you would imagine maintaining this site costs me considerable sums of money in many, many ways. If you believe this site is a valuable and FREE educational resource and, you want to keep it that way, then here's how YOU can demonstrate your very practical support for this site.. - If you feel this site is a valuable resource then consider emailing a friend. Power Supply design - 1 - a home learning tutorial on the basics of designing simple power supplies for radio projects. Power Supply - 2 - regulation of power supply voltages. Power Supply - 3 - designing with solid state regulators as well as using higher current regulators. Power Supply - 4 - a bench variable voltage power supply project for you to construct at home. FREE Monthly Newsletter - do it through the form on my new site www.electronics-tutorials.com - keep up to date with site improvements and additions here and there. Select either twice a month or just once a month version. You can view the archives of the previous issues of the Monthly Newsletter to consider if you wish to receive it. Concerned over privacy issues? If so please read my firm policy commitment on "your privacy and quickly unsubscribing" from my FREE email monthly newsletter. Electronic Projects - electronic kits and electronics-projects from friends of mine. CONTRIBUTE TO ELECTRONICS TUTORIALS If you've developed a great new electronic circuit or design, and can't wait to tell others about it, or you've written the best article ever on electronics theory or practice, why not see your work published as widely as possible. In October, 2001 www.electronics-tutorials.com and this site attracted 80,576 unique visitors who looked at 223,666 page views - [source - hitbox.com] This makes us the best way to bring your achievements and knowledge to the largest number of your colleagues and fellow enthusiasts. Contact me with your original contribution and possibly win an Amazon Gift Certificate! Remember only original work will be considered. The ARRL Handbook for Radio Amateurs 2008 - USA The ARRL Handbook for Radio Amateurs 2008 - Canada The ARRL Handbook for Radio Amateurs 2008 - U.K. Links and copying pages - If you want to link to me or copy any of my pages you should read this first. What's new - there is always something, nearly every day. Be your own cabinetmaker - How to build custom electronic enclosures from scrap plastic - brilliant, by Bill Jones KD7S. Excellent home learning to construct amateur-radio-equipment boxes. Radio Receivers - the fundamentals of radio receivers Free PCB drawing software - from Easytrax. DOS based but excellent AND free. They change this link that often so if it doesn't work let me know please. What is love? - for those who want a good start to the day. Notice to all Visitors - for those with a sense of humour The most incredibly funny joke I have ever heard - for those with an even greater sense of humour A basic old time crystal radio set - basic crystal radio set but includes a lot of design information a reflex radio receiver circuit - out of fashion now but here are the principles, design info and schematics Electronic Projects and Radio Design - Links to great sites for the amateur radio, ham radio or electronic hobby enthusiast. Brought to you from my good friends at QRP-L radio. Pictures galore of projects. I came here looking for - and you need help on? Books really essential for you to read and learn radio etc. - you need these books to understand amateur-radio-equipment. Good Links - a wide range of suppliers etc. Fan Mail Well I certainly do get decent email every day and no flames!. Well just what are other people telling me about this site? No I don't make these up. My social commentary - also my political philosophy and my published letters to the newspapers Defeat of the Australia Republic Referendum 1999 - my disappointment and views regarding the defeat of this most historic referendum held Saturday 6th November, 1999 Frequently Asked Questions (FAQ) I get a lot of questions but very few are ever repeated to be frequent Freebies - cost you nothing at all Michael MacNamara - b. (about 1810 - 1817) - My wife Carolyn is in need of further information on this distant relative to proceed further with her genealogy.

Ian Purdie - VK2TIP

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The author Ian C. Purdie VK2TIP asserts the moral right to be identified as the author of this web site and all contents herein. All rights reserved. See copying and links.

These electronic projects are provided for individual private use and the author assumes no liability whatsoever for the application, use, misuse, of these projects that result in the direct or indirect damage or loss that comes from these projects. All materials are provided for free private and public use. Commercial use prohibited without prior written permission from Ian C. Purdie VK2TIP.

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