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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by David M

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    High Speed Internet Splitting?

    Cableguy, nothing is impossible! Just as a side note, when I was in college, my prof in electrical engineering told us how to circumvent the filter, we tryed it out and it kinda worked. And in my experience working as a service tech I've seen some interesting ways that people have bypassed the...
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    Need help with a sequential LED circuit using 4017 & 555

    Just a Thought? I notice that you put in the tile of this post "Need help with a sequential LED circuit using 4017 & 555". Note the word "Sequential". Sequencial is usually meaning one way or in sequence, not ping pong, or bounce. Could you have understud wrong the project, becasue frankly...
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    High Speed Internet Splitting?

    Cableguy Hey i couldn't help but read what your trying to do, and well I work for the local cable company. Anyway, if I understand what your trying to do, is use a splitter to bring cable tv signals. If so you can use a splitter to split the internet signal you will get tv channels only if...
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    Drag racing Lights

    I'm trying to design a circuit for my local rc car club. I wanted to build a drag racing christmas tree. Intially I wanted the pre-stage lights to light when a button is depressed, starting the 1 miunte count down. At 20 seconds to start the staging lights would light up. Then at 4 seconds...
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    Water Electrolizer

    In the 19th century, the gasoline portion of the refining process, was first considered to be a 'waste' product of extracting the purified crude oil. Later on, it was discovered that it could be sold as fuel, instead of just dumping it back in the hole as had been the tradition. The point...
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    Making a sparkplug 'spark'

    Why not use a barbeque butane lighter. You can buy them for 4 dollars at Canadian Tire. The principle is like a spark plug, but doesn't use any batteries at all. You just press the red button and a spark is emitted!! That s what I use to ignite my potato gun.
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    Flashing Cell phone antennas???

    Can anyone point me in the direction of how this cell phone flashing antennas work, and how to build a working circuit. I would appreciate any help on the matte. \thanx

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