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  1. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    I re-installed too - to fix the 720ms problem and I've lost a diode (the one I was using) not a major problem but it's not good, and its even worse only makes it to 90ms
  2. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    did you reinstall?
  3. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    also can somebody alter the Pre-amp to run on 12v if you're able
  4. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    ok I'll be there when you get back see if you can solve this 720ms conundrum its actually 691.8 stops dead every time
  5. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    rename.sub
  6. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    when I run an older schematic it works fine this is really puzzling me
  7. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    my simulator stops just before 720ms wherever I put the probe so I do not think it is my computer crashing do you know what could be the cause?? this mean anything
  8. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    I've tried turning the pc on and off, no joy, I have a question what exactly does this little buffer do? the same thing happens it just stop just shy of 720ms, where ever I put the probe, whats up with that?
  9. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    my laptop is crashing
  10. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    it just stopped here
  11. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    ok any power going to that? VCC GND?
  12. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    here is another picture
  13. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    as you can see when disconnected it works!
  14. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    why is the black box taking so long to load up before it was near instant and it doesn't work atm still
  15. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    this is supposed to be the envelope after the diode, I don't think that it looks right! its from this point
  16. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    so if I change R18 will I have to change the C15 and C17 what should I set it to so that it comes under the 8.4v of the LM3914
  17. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    ok its working again now
  18. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    I did do that already also my black box isn't loading up again, do you know whats up? do i have to wait till it gets to 100%
  19. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    do I need a capacitor between the envelope detector and the LM3914 perhaps?
  20. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    when I attach the circuit to the lm3914 the enveloping effect does not happen
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