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    Monday, August 13th, 2007

    DIY Spy Ear reverse engineering

    Here is a project that I have often thought of. I hope we have all seen those amplifier spy toys for like a dollar. I have often thought of grabbing one, and using the circuit to make something cool. It would probably work as a headphones amplifier. You could even stick […]

    Sunday, January 15th, 2006

    Simple FM Radio

    Here is a perfect simple one transistor FM radio to build. Here is a good starter DIY project for anyone interested in audio. This simple radio uses an inductor as both the oscillator circuit and the antenna. It just uses one JFET transistor. There are two designs on this site. […]

    Saturday, January 14th, 2006

    DIY Stereo FM transmitter 2

    I recently told about the BA1404 stereo fm transmitter integrated circuit. It is the main chip that you find in most kits (I have done kits. They usually are solder by number, and don’t really teach you anything, unless you really study them, and are therefore not much fun. It is much […]

    Wednesday, January 11th, 2006

    DIY iPod stereo FM transmitter

    After posting about the simple FM transmitter, I decided that I wanted to try to make a stereo transmitter for an iPod. Something like the Griffin iTrip. This would not have to be just for an iPod, but could be for basically any stereo signal that you wanted to send to a stereo. […]

    Tuesday, December 27th, 2005

    Decode telephone touch tone

    Here is a quick cool thing to look at. I really want to design something using telephone touch tone. It is 2 frequencied combined to make the tone, and here is an article on getting a encoder and decoder. I will do better updates after the holidays. Things are crazy now, […]

    Wednesday, December 21st, 2005

    DIY FM transmitter

    This is an article that I am very interested in. It is not so important to me to have the capability of using a microphone to transmit over FM, but, I want to try to build an FM transmitter to use as a remote control.

    There are other uses of this circuit. It can […]

    Saturday, November 5th, 2005

    Altoids pocket amplifier

    This project was featured on Makezine, only they did not show the article. It was just the Flickr pictures of it (at least that is the project I saw). This is a neat project to make, and has several applications. First it could just be to power your headphones, or it could […]

    Thursday, November 3rd, 2005

    Build your own Radio

    If you look down a few articles and see the laser radio, you may wonder how can you transmit a radio signal through light? Well in reality, you are not sending a radio signal, because that is via an electromagnetic wave, but you are modulating the light. You are actually amplitude modulating the […]

    Wednesday, November 2nd, 2005

    1-watt amplifier

    There is a lot of need in electronic projects for a good amplifier. Here is a small 1 watt amplifier made with simple resistors and transistors. I try to remember back to my electrical engineering days of how to do this, but can’t remember. This is a good website that tells how […]

    Monday, October 31st, 2005

    Transmit radio signal with laser

    This is a how to project on transmitting audio through a laser. I remember some electrical engineering friends of mine doing this same thing. I have always wondered how it was done, but now, I see it is pretty easy. I might have to make my own version of this. Of […]

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