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  1. Alec_t

    Solenoid Current Flow

    No. Instantaneous current will vary as a function of coil inductance, coil resistance and the equivalent series resistance of the capacitor. If the solenoid has a moving ferromagnetic core then the coil inductance will vary with time.
  2. Alec_t

    Does anyone know what this is?

    Quite a few regular contributors here are no longer in the flush of youth, so have had a lifetime of learning and experience to accumulate knowledge.
  3. Alec_t

    Does anyone know what this is?

    Usually considerable wiggle room. [BTW, there's a world of difference between MH and mH !]
  4. Alec_t

    Does anyone know what this is?

    Agreed, it looks like a common mode choke. How did you detect that it's bad?
  5. Alec_t

    Automotive Warning light help

    How would that prevent the faulty check control unit signalling low fluid level? Would removing the relevant bulb be enough? Or would there still be an error flagged and stored by the unit?
  6. Alec_t

    farfisa organ

    Marco, this thread is 13 years old!
  7. Alec_t

    Please help me calculate wire temperature due current

    The power dissipated in that piece of wire will be 2A x 2A x 12mΩ = 48mW. I doubt it will get noticeably warm to the touch. If you're trying to make a heater, use resistance wire (e.g. nichrome) instead of copper
  8. Alec_t

    blew out a battery capacity tester. where to start?

    Most seasoned board builders use components well within their ratings, for reliability.
  9. Alec_t

    Please help me calculate wire temperature due current

    50cm of 1mm diameter copper wire has a resistance of about 12mΩ. So a 12V source will try to drive a current of about 12V/12mΩ = 1000A through it. That would vapourise the wire virtually instantly. You haven't said whether 2A is the rated current of the supply or whether it is a controlled...
  10. Alec_t

    Blown SoundCard Input

    I didn't see any mention of high voltage, or an internal battery/supply, in your original post?
  11. Alec_t

    Blown SoundCard Input

    Then I'd guess high voltage got where it shouldn't and damaged the sound-card.
  12. Alec_t

    Blown SoundCard Input

    Does your mic have an internal battery?
  13. Alec_t

    Does anyone know what this is?

    Another pic, wider angle, would be helpful.
  14. Alec_t

    Reduce amperage without reducing voltage. Question. Help.

    Welcome to EP! Nothing. The current drawn is determined by the load resistance. Your monitor will take the current it needs (1.6A).
  15. Alec_t

    Micro motor control with 2 detector switches

    It looks to me as though the servo has a linear feedback potentiometer for position control. Won't you need to use this in your project? If so, the circuit required will be more complex than an H-bridge.
  16. Alec_t

    blew out a battery capacity tester. where to start?

    Ok.
  17. Alec_t

    AC Compressor blowing fuse

    Welcome to EP, Shweta! Did you check the date of this thread before posting, or note that the problem had been solved?
  18. Alec_t

    blew out a battery capacity tester. where to start?

    Unless it's a camera artifact there seem to be soot deposits on two of the fan blades, close to the fan centre, suggesting at least one of the transistors in that area emitted the magic smoke.
  19. Alec_t

    Help with work to finish my college. Help me please!

    Q8 and Q9 are wrongly located/configured. Read up about P-channel and N-channel MOSFETs.
  20. Alec_t

    Boosting the Amper and altering the frequency

    @Maxouishere I gather you wanted the potentiometer model for LTspice. Please find the files attached. Edit the file names to delete the .txt bit.
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