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  1. K

    ltspice

    Hi I have installed ltspice in my d:\ directory. But when I open ltspice from my desktop it creates a new directory under c:\ documents called LTspiceVXII. I was wondering is it possible to use the directory I created in my d:\ folder instead of creating a new in folder in c:\ documents. I...
  2. K

    icircuit

    Hi Does any one know if the icircuit circuit simulation and builder for windows 10 has subcircuits. I noticed on the mac version that it has subcircuits, but I can't find that in the windows version. Thanks
  3. K

    Circuit not working

    Hi I have build a circuit but for some reason it is not working. The capacitor is suppose to discharge through the bjjt pnp transistor. Hence the transistor acts as a switch. But the capacitor isn't discharging when I apply current to the base of the transistor. Circuit diagram is bellow. Thanks
  4. K

    Capacitor

    Hi I was wondering how much capacitance a capacitor would need to store 5 volt current. Basically I need to know what would C be for storing 1 bit. Thanks
  5. K

    Switches

    Hi I was wondering is it possible to connect 4 outputs to one switch. For example you have 4 inverters that you need to connect to the 2 inputs of 2 or gates (4 inputs total). How would I connect the inverter to all those inputs using one switch such that when I flick the switch on it lets all...
  6. K

    Or gate with shift register

    Hi I was wondering how would you connect an or gate to a shift register? Thanks
  7. K

    Circuit not working

    Hi I have created a 2 bit adding machine that outputs a 2 bit number. I am trying to connect the machine to a shift register and store my 2 bit numbers. the shift registers should output the 2 bit numbers one at a time. I am using the LED's to simulate a 1 or a 0. But for some reason my circuit...
  8. K

    74166 8 bit shift registers

    Hi I checked online but I couldn't find a data sheet for 74166 8 bit shift registers. Does any on know where I can find a full data sheet for it. The 74166 register is the only register my circuit simulation app (Icirciut) provides. Thanks
  9. K

    falstad

    Hello I am using falstad the circuit simulator. falstad has a really useful user interface that I enjoy. But falstad can't handle complex circuits or more than one circuit at time. I was wondering is there program with similar user interface like falstad, but it can handle complex circuits...
  10. K

    Interface microprocessor with microcontroller

    Hello I am trying to interface a microprocessor with a microcontroller. I am not using anything fancy like an Arduino or PC. I just have intel x86 chip with dip packaging and a microcontroller chip with dip packaging. I was wondering how would I connect the processor to the controller using...
  11. K

    Using transistors

    Hello I am trying to use a npn transistor, but the circuit simulation program says I have one bad connection. I am not sure what I am doing wrong. I am providing a week signal to the transistor base (0.7v) and I am providing 9 volts to the collector. My load is the resistor. Based on the...
  12. K

    Transistors amplification

    Hello I know transistor amplifies current, but I am a bit confused about that. Can I power a component that requires 10A (ex. motor) using 5A and a transistor? Can the transistor increase 5A to 10A? What will happen to the voltage in this situation will the output voltage also increase? Thank...
  13. K

    Op Amp

    I set up an amplifier circuit using tlc272cp op amp I check the current using an multimeter but I don't see any gain I was wondering if some one could tell me where I am going wrong? I attached a picture of the circuit
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