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  1. chopnhack

    Why I prefer electronics to plumbing

    Just wasn't your day... But at least its done! ;) I find this happens to me too, especially on work I haven't done in awhile but am confident in since I have done projects of that nature in the past and then... disaster strikes!! Took me well over an hour to run a single conductor in 5' of...
  2. chopnhack

    Basic Physics Question

    Thank you both Ratch and BobK - I think I have a much firmer understanding of voltage and current!
  3. chopnhack

    Help optimizing byte compare algorithm

    No worries mate, I am more of a bodger than an expert. (urban dictionary version of bodger, not the skilled woodworker of old!) I am itching to get back into that though, just too many other projects in the concrete world that need attention...
  4. chopnhack

    Basic Physics Question

    To summarize tonight's lesson as I understand them at this point: Charges are not lost or consumed as they flow through the circuit. But the energy done by these charges is imparted by the change in potential.
  5. chopnhack

    Basic Physics Question

    This is where I am getting hung up.... We know there is a voltage drop across the filament, but there is no change in charge, thus all of the change in voltage must account for the energy portion of the equation. So some energy is lost as heat, through the undefined quantum process (that yes, I...
  6. chopnhack

    Basic Physics Question

    Does this imply that the voltage drop that occurs across the filament accounts for the energy released from the bulb? Can you explain the quantum process further? (In simplistic terms.)
  7. chopnhack

    Basic Physics Question

    Yep, covered in first sentence. Didn't want anyone to think this post was going into a free energy machine discussion ;-)
  8. chopnhack

    Basic Physics Question

    In this simple example, the battery is the source or 'pump' to produce our potential and also the source of our current. The light bulb is our resistor. When the switch is closed, the difference in potential between terminals is realized, and a flow is established. Electrons move from the...
  9. chopnhack

    Basic Physics Question

    While learning about current, the text states that charge/current is not consumed. KCL shows this as does the law of conservation of energy. What I don't understand intuitively is how charge/current is not consumed if they produce work? In more concrete examples we see energy given off with...
  10. chopnhack

    Voltage rating of Capacitors.

    I had one explode inside of my enclosure for my 'wired' wireless rain sensor project. Due to rms voltage rating not being taken into consideration! oops, rate your caps appropriately :-)
  11. chopnhack

    Help optimizing byte compare algorithm

    My knowledge on this would be anecdotal at best :oops: I am currently nursing through a free course on edx.org called Systematic Program Design. They have a formulaic way of writing code that many would find tedious and slow, but I have rather enjoyed 'getting' how things go together logically...
  12. chopnhack

    IR Detection Circuit

    The 9V battery typically only has about 500mAh of useful lifespan. Can you use 4x AA or AAA instead?
  13. chopnhack

    Homemade PCBs with a Brother printer - 4mil Traces

    My best results with non specialty paper was with thin magazine paper. I steamed it off to the point where running it under water lifted it right off! It was very cool. My only issue so far is toner density - I have not figured out how to increase it over the max resolution offered by the...
  14. chopnhack

    Homemade PCBs with a Brother printer - 4mil Traces

    Wow Dan! I have had good luck with the foreign yellow paper as well as the steaming of the paper off of the pcb. The one drawback I have seen so far with steaming the paper is sometimes the increased temperature and presence of water does oxidize the copper. Mostly cosmetics as the exposed parts...
  15. chopnhack

    Better understanding of Electricity.

    Not what I said, reread the definition I provided. The splitting hairs comment was aimed at your comment of "Ohm's law in not V=IR and all its variations." The textbook is new and quite clear as I quoted previously. My point exactly. A technician does not need the same level of minutiae in his...
  16. chopnhack

    Better understanding of Electricity.

    Perhaps. But the OP does ask for our opinions on the matter as he states he is unsure after watching it. (states "I think"). I disagree. A layperson is someone without professional or specialized knowledge in a particular subject.There are many members here who are very highly educated in...
  17. chopnhack

    Better understanding of Electricity.

    I will offer that perhaps since he is not a native english speaker he may not grasp what you are pointing out. Also, the term "current flow" is so often used that it has become understood amongst us lay people. (A quick web search shows that is not just the lay folk...) The word "current" as...
  18. chopnhack

    Modular house - intercoms won't work from front to back.

    Doesn't load balancing happens automatically in most boxes due to the staggering of the bus bars? - i.e. a 240 circuit is going to grab a bar from each side of the service and thus balance. Even if you filled one side of the box with 110v circuits, due to the staggered nature, it should self...
  19. chopnhack

    Modular house - intercoms won't work from front to back.

    When X10 was popular, they used to make phase couplers for just this purpose. To tie the signals from both sides of the service together. Search the web for a phase coupler and you can see what they are. Do you have a model number for the intercom?
  20. chopnhack

    Hello electronics point

    Welcome to EP That's ok you certainly can learn a lot here, but coral reefs are sorely needed as well!!
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