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  1. endlessparadox

    Electronic Circuit error

    Hello i have to build this circuit where you see the ~ icon it is the 2 input from a step down 14v transformer.When it is disconnected the transformer give 14v, when it is connected it gives only 4v there should be a defect in the circuit can someone help me find it please?
  2. endlessparadox

    Need to build a circuit + Power supply check plan for me

    Like the title says i need to build this circuit on a stripboard with a power supply: The power supply circuit isnt included but it is connected to this circuit.You dont need to matter about the pieces part just watch if the connection links or breaking of copper tracks with are the rounds...
  3. endlessparadox

    Resistance + LED works on breakboard not on stripboard?

    Like the title says why? Here are some pictures if it helps I tried removing them from the breakboard to the stripboard like 3 times.I tried soldering all the cables even with the batteries cable.I tried without soldering.I tried putting the battery leads directly on the coppertrack.It refuses...
  4. endlessparadox

    Does Solder bridge on a strip board matters if it is in the same copper track?

    Does Solder bridge on a strip board matters if it is in the same copper track? Like i said when i am soldering on the strip board i always make bridges but these bridges are on the same copper track.Does it matter?
  5. endlessparadox

    simple resistance calculation exercise

    The first image is the exercise the second image is what i have done can someone explain me what is my mistake? And is there a simpler way to do it?
  6. endlessparadox

    Simple maths resistance exercice

    https://ibb.co/irx3yz Only the example exercise at the end of the picture.I only know ohms law and that P=VxI How am i supposed to do it
  7. endlessparadox

    How does a decade counter IC 4017 works?

    Like the title how it works? Only thing i understood is that it give an output based on pulses? What is a pulse? how are you supposed to send specific pulses? I need a more general explanation on IC. Only thing i understood is that NAND AND OR Gates and some basic others. I understood the thing...
  8. endlessparadox

    Explanation of a circuit

    Need to understand simply because im pretty slow at understanding things. First what does the 7805 do regulate voltage what it means more exactly? UM66 how does it generate a melody does it make different tones or only one thing. I know transistors boost current and act like amplifiers all that...
  9. endlessparadox

    12v 100 ma project check

    The objective of this project is to get a stabilised output voltage of 12v and a current of 100mA. As Mauritius have a 230v AC voltage distribution with a frequency of 50Hz. The VN30.15/10525 transformer fit with a frequency range of 50hz to 60hz and a 230v input.With a 15v Output.The 2,3...
  10. endlessparadox

    Regulated output voltage of 12v 100ma.

    The objective of this project is to get a stabilised output voltage of 12v and a current of 100mA. As Mauritius have a 230v AC voltage distribution with a frequency of 50Hz. The VN30.15/10525 transformer fit with a frequency range of 50hz to 60hz and a 230v input.With a 15v Output.The 2,3...
  11. endlessparadox

    Beginner regulated power supply circuit help

    Hello so im pretty new in electronics and i need to make a regulated 100mA 12v output power supply. The capacitor formula is = Capacitor=(load current*ripple voltage time of one cycle)/peak to peak ripple voltage The zener diode use 20mA so the load current is 120mA. But how do i know the ripple...
  12. endlessparadox

    Step down transformer reference list?

    Hello i am a very big beginner in electronics and i have a project to make a stabilised DC of 12v with 100 mA I need help with the transformer because im looking for one everywhere and i can only find 240v to 110v or 240v to 12v i would like one that would turn 240v ac to 20v ac where can i find...
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