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  1. hevans1944

    I need to hire someone for a logic design

    @Madsalts : I read some of your previous posts dating back to when you joined this forum in September 2014. I even responded to one of them to confirm a PWM controller would not harm your motor if set to 0% duty cycle. It appeared then that you have some interest in electricity, motors in...
  2. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    You have to believe in Tesla's "radiant" electromagnetic energy... a form of normally unobservable longitudinal "compression wave" type electromagnetic energy, also called scalar (as compared to vector) electromagnetic fields. James Clerk Maxwell, in formulating his original twenty quarternion...
  3. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    Another thing to consider is the search for better than break-even fusion reactors. Billions (maybe trillions) of dollars have been invested in this effort world-wide, and a lot of new science has been discovered, not to mention the advent of super-computers to model thermonuclear reactions of...
  4. hevans1944

    Hello

    Welcome to Electronics Point, Jonathan. You will find we are (mostly) a fun group of people who are always willing to lend a helping hand with problems great or small. It helps a lot if you provide as much information as possible about a problem with your first post about it. Things like model...
  5. hevans1944

    Video Switcher

    Okay, if we are derailing the thread, I would like to mention a project I did sometime in the early 1980s. The company I worked for had just acquired an imaging infrared camera (FLIR or Forward Looking Infra Red) with two liquid nitrogen cooled detectors, one "tuned" to 3 to 6 μm and the other...
  6. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    First, we should all recognize that it is impossible to "prove" a negative statement. All it takes is just one counter-example to demonstrate the negative statement is not true, but until that counter-example is demonstrated the truth or falsity of the negative statement remains in limbo. So, to...
  7. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    I'ld like to know how many zillions of hours have been wasted by people who are simply ignorant of the way things work. If you have lots of "spare time" left in your life, start reading here. Be sure to follow ALL the links!
  8. hevans1944

    Video Switcher

    No, RGB is separate video with sync usually on Green. Composite video is sync + video (either monochrome or color) on a single wire-pair. For color, the video has quadrature I and Q components that must be synchronously demodulated using as a phase reference the six to ten cycles of...
  9. hevans1944

    Interesting...HFT Faux Pas

    "5/16" in the lower left image actually appears to be "11/16" size. This would be in agreement with the sizes increasing from "3/8" in increments of "1/16" i.e. 3/8 = 6/16, 7/16, 1/2 = 8/16, 9/16, 5/8 = 10/16, 11/16.
  10. hevans1944

    Interesting...HFT Faux Pas

    Still, mistakes and all... I'ld buy that for a dollar! (Robocop quote:D)
  11. hevans1944

    Micro sgtc (spark gap tesla coil)

    There is a huge amount of information, as well as misinformation, about Tesla coils on the World Wide Web. Start here and go exploring until you find someone who (1) actually builds Tesla coils and (2) writes coherently about it. I consider Tesla coils to be interesting toys with no practical...
  12. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    Hydro, as a short form of hydroelectric, usually refers to power generated by falling water, as in hydroelectric dam. The source of this water is of course evaporation from the oceans by heat energy from the Sun, falling as rain. It does not rely on the moon's gravitational pull. Perhaps you...
  13. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    Or, as science fiction author Robert Anson Heinlein often stated: TANSTAAFL. There Ain't No Such Thing As A Free Lunch.
  14. hevans1944

    Free Energy / Energy Harvesters / Perpetual Motion

    Good points, @Gryd3. Energy harvesters are only useful if your device uses minute amounts of energy. Some practical energy harvesting techniques include using changes in atmospheric pressure or changes in ambient temperature to produce extremely small charge displacements that can be stored on...
  15. hevans1944

    I'm New, Please Help Me!!!

    Welcome to Electronics Point, Pete! I am not sure I would use WD-40. It can leave a sticky residue. I use it for just about everything around the house, but I don't trust it for precision bearings. I have discovered it is good for removing the sticky residue from the label applied to...
  16. hevans1944

    Burned disk cap need specs...?

    A metal-oxide varistor (MOV) is a semiconductor device that is normally non-conducting until the voltage across it reaches a certain level and rapidly (think microseconds) turns it into a short-circuit. MOVs are designed to blow fuses, protecting electronics from transients. MOVs will...
  17. hevans1944

    Quasi Woo Woo Thread . . .a la . . . .Myst D

    As P.T. Barnum is misquoted to have said, "There's a sucker born every minute." The comment was likely made by a true sucker, David Hannum, who got taken to the tune of $30,000 by the Cardiff Giant hoax. Read more about the Cardiff Giant Hoax here.
  18. hevans1944

    Hello and is this the right place?

    Welcome to Electronics Point, @Hsnopi. You have found the right place. Shielding on cables is a complicated subject. Ask away and someone here will try to come up with an answer.
  19. hevans1944

    Transistors

    You might be able to get better help here.
  20. hevans1944

    Exactly how evil are Capacitors?

    [mod deleted irrelevant stuff] When you need a capacitor there are no workarounds. Learn some more about electricity and the properties of electrical components so you won't be an "irresponsible noob" anymore. All of us here had to start somewhere. No one I know of was born with an innate...
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