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  1. Kabelsalat

    Numerical problem

    You first find the impedance of the feeder system. Then do the same with the motor, an you have two impedances that can be calculated the voltage drop over.
  2. Kabelsalat

    Help with Voltage Regulation

    Ok. For current regulation - if power loss is not an issue, you could simply use voltage drop over a low value resistor connected in serie with the cap. Limited the cap voltace is simething I'll normally prefer using a comparator for. If using a resistor in order to measure charge current, you...
  3. Kabelsalat

    Help with Voltage Regulation

    I have trouble of understanding your statement: I want to trim the voltage that a source produces without any significant loss in the current. So - without having control over load impedance that is impossible (as in math equations) - that is just like I tell you how to crank up the water...
  4. Kabelsalat

    12v automotive relay how do you find amp rating ?

    What I have learned over the yerars having similar issue is simple: Just write down the unit name, brand, etc. where the relay was picked from. That is of course - if it was used in some device when you found it.
  5. Kabelsalat

    1980 Soviet Radio Cassette amplifier problem.

    I suspect that Vbe across transistor labeled V5 is too low, and therefore it takes more time for the output transistors - the period where zeero crossing and none is conducting. Therefore - a slightly (very tiny) re-adjustment of R38 may be the way to go. But the danger is that adjusting it too...
  6. Kabelsalat

    N channel Fet v npn

    Hi. If you search for "BJT as switch" there will be plenty of resource out there. Also, this should be helpful for you: http://www.circuitstoday.com/fet-biasing
  7. Kabelsalat

    Whats the point of the Op-Amp in this D/A converter

    That is becasuse: - 1. This is not a voltage divider. It doesn't work as a voltage divider at all. - 2. Why: The negative input terminal at the opamp will always be at zeero, at least very close - probably less than your multimeter can measure. - 3. And why is that: The negative terminal is...
  8. Kabelsalat

    Capacitor problem

    If there was a full shortage in the cap, the motor may have take som damage too before fuse tripped.
  9. Kabelsalat

    Simple Low Frequency Sound Generator

    Hi. You'll ned both an oscillator and amplifier for this task. Do you have other criterias then just the frequencies ?
  10. Kabelsalat

    Help with relay powering soft-latch power switched inverter

    So - may I summarize? - You want to wire in a relay, power in or voltage out? External or internal? - You have a hand controller, but is really a "black box" and you do not know what is in there? maybe exept some lagels. Neither can you tell about model number and branding. - You're not sharing...
  11. Kabelsalat

    Powering one 12v device from two 12v sources

    Ok, you have two supplyes. Can you explain the conditions for each supplies gives output? Need to understand that logic, so if for example one of the supplies is always ON, then there is no point of including that because camera will just drain the battery. I assume you want the dash camera to...
  12. Kabelsalat

    Powering one 12v device from two 12v sources

    I qyestion the same as Steeve - ot seems like you describe one supply that have two paths to target. Why not just using the battery directly (via fuse) and just use a simple mecanical on/off switch.
  13. Kabelsalat

    What are real example of " While Loop"

    Ther is the while loop, and also much used do/until (terms may differ in other programming languages). The while loop executes zero or more times until a condition is true. A do/until (or do/while) loop runs one or several times until a condition is true. It may be easier to explain using...
  14. Kabelsalat

    Unknown component

    I would have guessed a diode of some sort - have you tried to measured it? Do you still have the original circuit board where it came from?
  15. Kabelsalat

    Need to replace an old style Capacitor

    What is it about your "old style capacitor" that you cannot just buy an ordinary capacitor with the same ratings?
  16. Kabelsalat

    Any Linux (specifically Ubuntu) users here? HELP!

    What Ubuntu version (and desktop) have you installed? Anyway, just use any web search engine and results will come to you: https://linux.palemoon.org/help/installation/ Also - for Linux specific issues, about any modern distro have their own user forum where the experts are located, in your...
  17. Kabelsalat

    Transformer primaries in series, secondaries in parallel -- ok?

    The center pin make it all wrong because it is two separate iron cores. See my drawing then you see what I mean:
  18. Kabelsalat

    Help with small solar panel setup. Volts but no amps.

    Cannot see out of your pictures whether the meter is in AC or DC mode. Make sure that it indeed measure DC current. If not - do a second check and measure current through a known current loop - example a battery and a resistor, just to make sure that the meter is capable to measure DC current...
  19. Kabelsalat

    Sensor to detect force from an angle

    Well - yess. I didn't get the impression that the target was supposed to move - or if it was supposed that the target may hit at different location every time. And then it depends in the censor it self. I'm not very into censors, but at least you need to know how it performs when the force has...
  20. Kabelsalat

    Sensor to detect force from an angle

    Or maybe the problem could be solved by two weight censors:
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