Search results

Search Forums New Posts
  1. N

    Difference between the following faculties?

    Most of the difference in emphasis can be taken from the names, as places tend to name things appropriately. Names are not changed frequently, so sometimes the official name lags changes in the taught content. . As the actual emphasis changes from place to place, check out the course content...
  2. N

    Clarifications on the PWM signal

    If you mean you can encode information, including sampled analogue level as pulse width, then yes.
  3. N

    ic 4027 wave form

    Many thanks. Interesting. 3055's Yep, an older circuit. At first look there seem no reason that this cuircuit won't work. The joystick adjusts frequency to the motor: the purpose of which is not obvious to me. .
  4. N

    ic 4027 wave form

    From the circuit posted & your info, it appears that this should work as a divide by 4, or slightly modified as a divide by 2. This points to perhaps assembly technique letting you down. . This may not be helped with a new circuit. Your choice, of course, to post more info, as in the questions...
  5. N

    ic 4027 wave form

    Pin 1 to pins 2 or 1 gives you divide by 2. Pin 13 to pins 14 & 15 are another divide by 2. . The division is in frequency. . Did you get anywhere on the strange output?
  6. N

    ic 4027 wave form

    For CMOS random-like misbehaviour could mean a disconnected input. Check the connections are good to all the pins? . Any load on the outputs? . Is the supply voltage stable, regulated? Any capacitor on the supply near it? . Is the 555 on the same supply? pin 14 should probably show inverted...
  7. N

    student on electrical engineering ( question )

    Electrical engineer, electronics (light current) , signal processing, Machine learning . I wonder if the job of electrical engineer is more and more complicated over time ? About the same. IT's been wonderfully rich the whole time. Some aspects easier: Electronics has become easier, a lot more...
  8. N

    Hi Guys

    Sensible warnings, absolutely. Also, welcome. A place with lots of people with different experience and levels of experience. A good place to try questions.
  9. N

    Nyquist and data logging

    For a strictly periodic signal, the spectrum (of sine waves) will be discrete, harmonics of the repetition frequency of the waveform. See Fourier decomposition, Fourier analysis, Fourier series. . For a waveform that is not strictly repeating, the spectrum will be continuous, a set of many...
  10. N

    What skills should I learn to find a better job as an optoelectronic engineer?

    Not really obvious to me what area you want to work in. As an electrical engineer, I'm not expected to know HTML, CSS, javascript. As a ML engineer, I tend to know some python, C, C++ Matlab. . In my organisation, which ois quite broad, some of the materials scientists work in applications of...
  11. N

    CD songs distorted badly first two or three songs.

    If you put it on "shuffle" is it the same tracks that play badly?
  12. N

    Nyquist and data logging

    Great, thanks a good explanation of where you are. First, for my understanding, can you explain what you are measuring. I can't initially see why it is always positive. I would have thought that force would be a vector, or at least signed on each axis, first left, then right, then left, ...
  13. N

    transistor base load

    Have seen an ages old calculator that used an ultrasonic delay line for memory. Faster RF transistors? Audio circuits routinely implement delays. Could google that avenue?
  14. N

    Analog frequency meter

    When you say "meter", do you mean a simple meter display or something that has active components, transistors or values? . What people were saying above is that there is no simple way to read frequency with just a moving needle meter without something active to count cycles, or to average...
  15. N

    transistor base load

    What's your plan for using the delay?
  16. N

    Analog frequency meter

    Provide a little more info? Image? model? schematic? source of meter?
  17. N

    transistor base load

    There was once a delay line that was acoustic with a relatively high impedance, hence not impossible. Or he could mean something completely different. . But, I think most of all, we are trying too hard. The original poster does not seem to want to add description. Such description would allow...
  18. N

    transistor base load

    https://www.electronics-tutorials.ws/transistor/tran_4.html - bipolar transistors as a switch...
  19. N

    transistor base load

    Load? So you mean shunt? It is across the base to emitter? . Or do you mean in series with the base? Ohm's law and some spec for the transistor will sort out whether you will get what you want. Or explain a bit more and we might be able to help. Ohm's law will get you some relationshipd between...
  20. N

    Does this video impress u guys or is it a FAIL

    I guess if I use it correctly a transistor can look like a variable resistance in that it has controllable voltage and current. That agreed, if a transistor can be a range of resistors, then transistors seem more versatile, but then if in any one place what I need is a resistor, a resistor might...
Top