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  1. Kabelsalat

    Windows Key Is Not Working Properly, what to do?

    More info is required from OP to assist: Does a restart clear the issue? Is it some games that this issue happens with and others not affected? Are you using software that "capture" or emulates the Windows key? I ask because I have made some Autohotkey scripts during the years since I found...
  2. Kabelsalat

    What is PSM in relay?

    I might know this - but since I'm not native English nor is my education, this is guessworking at best. Do you have a link to where you see this letters or the whole sentence if from a text book. Also please include device brand name and model.
  3. Kabelsalat

    Measuring negative current

    The golden rule to remember here is - if the supply voltage for the opamp and it's output allow: There will be an equal amount of current through both resistors (you should label them for reference). Therefore ohms law applies. The negative input of the opamp wil have a voltage nearly equal to...
  4. Kabelsalat

    2 transistors conected in serie and a mosfet

    Schematic looks incomplete to me. I'd think the BJT should actually be photo transistors. Maybe it's supposed to be different light paths so that the two BJT's are located on different locations? But the base connection between those two doesn't make sense to me.
  5. Kabelsalat

    Understanding two Multivibrator models

    Without having used Cadence, I'll suggest your model2 because I believe the separate loop C1-R1-NOT are unstable and will have a tendency to oscillate with high frequency.
  6. Kabelsalat

    Feeding load with two 220V AC power supplies to reach uninterrupted power supply.

    The problem I'd think look more like this:
  7. Kabelsalat

    24v auto relay changeover ???

    You need to make out the following yourself: Wiring diagram Set up a complete map with the connection between each wiring terminal against the others. See the attachment how to make such a connection diagram.
  8. Kabelsalat

    Help - Mystery Outlet! Photos & Video

    There is this table saying Japanese wiring use both L3 and N in white, and star indicates a comment but that comment is nowhere to see o_O
  9. Kabelsalat

    multivibrator circuit

    You don't have any mechanism to control the frequency nor rms voltage. Without further analyzing the circuit, it looks like it must not be completely mirrored - I may be wrong on this - but if completely mirrored, I think at least for a moment there will be a race when neither of the...
  10. Kabelsalat

    Wire connection point to point?

    There is one little confusing thing (English) - The use of same word for this kind of jumper and the kind of detachable jumper you place onto a couple of pins to make a short. Locally - I'm used to name those with different terms.
  11. Kabelsalat

    HDMI PORT NOT WORKING

    By "devices" you mean monitors or another computer ? Please provide excact information (welcome to use the bullet list) about how you've tested on other devices?
  12. Kabelsalat

    HDMI PORT NOT WORKING

    Have you tried this steps: https://files.support.epson.com/docid/cpd4/cpd43312/source/troubleshooting/reference/problem_no_signal_message.html Have you tried to connect to a monitor - just to check that it is not something else that cause this issue ?
  13. Kabelsalat

    LC parallel tank circuit

    It depends on the test criteria. As a very crude method as best, and for basic learning experiment when you know ow it works.
  14. Kabelsalat

    Calculate power value from a input current peak

    Well - this doesn't look like an ordinary RC discharge curve, so it's tricky if you cannot describe this area with some ordinary math function. Have you considering using Simpsons formula ?
  15. Kabelsalat

    BJT vs MOSFET for logic gates help

    I'll just point out that if you set yourself a goal of making more than a couple of logic gates out of BJT's, then you should try to use the resistors wisely, and also make use of diodes. You can easily halves the amount of resistors needed.
  16. Kabelsalat

    Dell laptop charger output voltage fluctuates from 16.9 V to 19V

    Why not just measure the voltage to ensure the voltage is correct ?
  17. Kabelsalat

    Space Vector Modulation

    The 1 over sqrt3 clearly indicates it is the RMS value in a three phase system.
  18. Kabelsalat

    Electronic Knowledge required for laptop repairing

    Depends on where you live and your age and how much time you got - and how much money to self sustain under course. One thing I see commercials for all the time on youtube is something called skillshare. However - I don't have first hand experience with that service. But that is one source I...
  19. Kabelsalat

    Electronic Knowledge required for laptop repairing

    As long as you just replace a single component - i.e. a electrolyte - you may have a chance to make the repair. Most often the only practical solution is to get a brand new motherboard and replace it all. That is if the rest of the computer is in good shape.
  20. Kabelsalat

    Do you know portable apps ?

    Most portable programs actually does work if it's run with admin rights.
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