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  1. ratstar

    low current plasma arc question

    yes!! =) https://arxiv.org/abs/1911.08086
  2. ratstar

    low current plasma arc question

    when electricity arcs (as in it leaves the metal and goes back to it) How much power dissipation does this cause?
  3. ratstar

    very high oscillation down copper wire

    I could rename that book "computers - amplifiers and oscillators" because computers contain nothing but them as well.
  4. ratstar

    very high oscillation down copper wire

    Thanks for showing me that, yes I never saw it, I just heard alot about it in highschool. Alien- Tech!!! I dont think what im making is that unusual, tbh, but to others im some alien wierdo.
  5. ratstar

    very high oscillation down copper wire

    Whats the life of Brain tower scene - (I know the movie, but I didnt watch it.) Its not when he was getting crucified, i hope.
  6. ratstar

    Removing ground cable off mini servos?

    I thought the motors in those blue plastic housings were just dc motors! I would have thought you could just connect the battery to them.
  7. ratstar

    very high oscillation down copper wire

    Thanks Bertus. Actually about that parallel crosstalk thing - use rectified ac, and then go + - + - across, and it probably doesnt happen. the caps would only charge one way then it would stop displacing. So thats one thing solved, but I'm just wondering what else is going to happen..
  8. ratstar

    very high oscillation down copper wire

    Ah thanks for the help! Ive never heard of wave guides before, could you tell me more about metal electrical ones? whats the difference between it and an ordinary wire? Yes sir, I have a funny feeling about that "displacement current" as in all the dielectric turning into a capacitor. If...
  9. ratstar

    very high oscillation down copper wire

    Sorry if this question doesnt suit the forum, but I dont know where I can go to ask this question, but I know you guys know things about this, you just dont like telling people for some reason. So can copper wire support high oscillations like above 100 gigahertz. What problems does such high...
  10. ratstar

    disassembling Black & Decker cm4000SC

    Maybe I'm talking about a different machine, when it drenches the ground beans in hot water, it has to push the flavoured water out of the coffee, and it takes about 200psi for a strong machine, would be good, because the last drops taste the best. :) How much electricity I spose it depends...
  11. ratstar

    disassembling Black & Decker cm4000SC

    Coffee Machines push the ground beans at 200psi, so how much electricity would that take?
  12. ratstar

    Capacitance Measuring Circuit - Can This Circuit Be Changed For Higher Frequency?

    If you lower the voltage youll be able to test higher capacitances cause itll stop off early, but ull have to add a transistor to amp it. It only would work 5 hz and up or the galvonometre will start to jump.
  13. ratstar

    Capacitance Measuring Circuit - Can This Circuit Be Changed For Higher Frequency?

    If the time it takes for a capacitor to turn off is t=RC. so the voltage your getting out of the cap is a proportional of the power going into it at some frequency. (the larger the capacitor, and the higher the frequency) the more power youll get. So maybe you could just hook a galvonometer...
  14. ratstar

    Capacitance Measuring Circuit - Can This Circuit Be Changed For Higher Frequency?

    I see the whole thing as a waste of components, why not just have the capacitor in series with ac, then the brighter the led (use 2 back to back) the more capacitance it is, depending on the frequency. the higher the frequency the lower the maximum bar is for farads tho. also the lower the...
  15. ratstar

    Newbe need help with solenoid kicker project.

    Depends on how many farads he needs, if its only a millifarad its quite harmless.
  16. ratstar

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    I mean theres no delay before it makes a connectivity beep. The cheap metres all have a second delay on them, it is TERRIBLE!!
  17. ratstar

    Has anyone here ever used a serial screen?

    Is it a touch screen? I wonder if you just put a random oscillation into it, noise would appear on the screen.
  18. ratstar

    LED Edison-style patio lights

    If they were in series I think so. You could try a connectivity test with a multimetre to find the bulb that disconnected.
  19. ratstar

    Help with LED circuit

    Making a computer is the same, you just have to get the LEDs to fire the right way. Is that your schematic? It looks nice and neat. Nice job.
  20. ratstar

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Its funny that unless you pay top dollar, you have to lose features for no reason. Only flukes are allowed instant connectivity test, the other brands arent even allowed to put the feature in their multimetres, otherwise there would be no need for the expensive one. Thats the kind of thing...
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