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Recent content by StoppTidigare

  1. S

    Maximum Gain Conjugate Match according to Pozar

    According to Pozar's book conjugate match is accomplished when ΓS=Γ∗inΓS=Γin∗ and ΓL=ΓoutΓL=Γout. The expression are Γin=S11+S12S21ΓL1−S22ΓL=Γ∗SΓin=S11+S12S21ΓL1−S22ΓL=ΓS∗ and Γout=S22+S12S21ΓS1−S11ΓS=Γ∗LΓout=S22+S12S21ΓS1−S11ΓS=ΓL∗ . This is solved and he obtains...
  2. S

    Is flatulent still around?

    Hi Klaus, do you remember him or was he around before your involvement on edaboard? Flatulent was an old-timer when I was active, and he was designing radio circuits already in the pre-transistor era and could answer anything related to RF. A guru here on edaboard. /Lasse
  3. S

    Is flatulent still around?

    Hi all, have not visited Edaboard for some +10 years, I was active when edaboard was elektroda.pl. I wonder if the electronics guru "flatulent" is still around helping out people or if he is currently discussing electronics with Tesla and Edison.
  4. S

    Spice3f5 on Visual Studio express ?

    Friends! Now when we know how to run it as a console-application. Could somebody write a Winmain program that launches a window with a button, that runs the spice-code, either as a dll or inside the winmain-executable. Kindest regards, Stopptidigare
  5. S

    Spice3f5 on Visual Studio express ?

    Hi again, I have a file rc.cir Basic RC circuit r 1 2 1.0 *l 1 2 1.0 c 2 0 1.0 vin 1 0 pulse (0 1) ac 1 .tran 0.1 7.0 *.ac dec 10 .01 10 .plot tran v(2) i(vin) *.plot ac vdb(2) xlog .end The file is located in the same directory as the visual studio project-file. I typed: spice3f5 -b rc.cir...
  6. S

    Spice3f5 on Visual Studio express ?

    Wow guys! Thanks for picking up the thread. Haven't visited edaboard since I posted my last on this thread. And I am returning now just in time to hear you guys discussing!!! Fate. Good Karma! So one can actually run the project that I linked to??? Must test it. It was so long ago, I don't have...
  7. S

    Spice3f5 on Visual Studio express ?

    Thanks for your answers friend, but I still have the problem with that I have no workable visual studio project file. I cannot make this project file I posted a link to to work. Could you try it out? And give your opinion? Maybe I lack knowledge in how to work in Visual Studio... Kindest...
  8. S

    Spice3f5 on Visual Studio express ?

    Yes, the link that I've pasted is a Visual Studio Express project folder with the Spice3f5 source code, without any build errors. And that is exactly what I want, because my ambition is only to study the internals of Spice, but when running that ported Spice3f5 code it doesn't do anything...
  9. S

    Spice3f5 on Visual Studio express ?

    There is a one guy Ray from Rayslogic that has published how to modify the the .bat-files for Microsoft C 5.1 to the Visual Studio Express C/C++ compiler. But I need to work in a code development enviroment to be able to get a overview more easily, since I would like to step through the code...
  10. S

    Spice3f5 on Visual Studio express ?

    Hi ! Has anybody succeeded on porting the Spice3f5 code to Visual Studio Express? I really would like to single-step thru that code and learn the internals of it.... Could anybody help? I cannot figure how to port this. I would be very greatful if somebody could share their visual studio...
  11. S

    Armstrong oscillator won't resonate

    Thank you friends! The V1 source was thought to be needed to kickstart the oscillation. Thought I needed something equivalent to noise to get the party started. It must be the case that an oscillator circuit does not need a simulated noise source to get started in simulatio, since it comes...
  12. S

    Armstrong oscillator won't resonate

    Thanks for the responce good friends. Here is a picture with the Dc-operating point values on the virtual measurements. /StoppTidigare
  13. S

    Armstrong oscillator won't resonate

    ads simulation hartley .dsn oscilator Hi, I wonder if somebody can help me with an oscillator circuit. 1. Is it possible to simulate oscillation with the SPICE3f5-engine? Or do one need a Harmonic Balance -code ? (Just, heard of it, don't know what it does. Has to do something with the...
  14. S

    Distorsion information through Bode-plot ?

    Hi all, its been I while since I've been at the forum... I've heard that a filter that doesn't distort for instance the audio signal needs to hav e linear phase. How could I tell if I have distorsion or not through looking at a Bode-plot ? Kindest regards, StoppTidigare
  15. S

    Help me calculate log-paper value by hand

    Hi, I got a problem, and my brain has stopped working. Wonder if somebody could help me: If I have a log-paper where the distance between the values 1 and 10 is 4.5 cm. The value 3 is at 2.7 cm. How can I calculate the value by hand if I don't want to rely on the marking ? I want to have an...
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