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  1. Vacuum tube - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Vacuum_tube   Cached
    Vacuum tubes are thus used for ... "special-quality" tubes with extended life, ... are direct-coupled and apply a high degree of linearisation by negative feedback.
  2. www.wolcottaudio.com/WA_presence.htm   Cached
    But conventional vacuum tube amplifiers, as well ... Negative feedback is held in some disrepute in the high end design community ... extends tube life, ...
  3. www.vacuumtubes.net/How_Vacuum_Tubes_​Work.htm   Cached
    We carry over 5,000 radio and vacuum tubes in stock every day and we ship world wide. ... Tube life is sharply dependent on temperature, ... Negative feedback, ...
  4. avstop.com/AC/apgeneral/​vacuumtubes.html   Cached
    Types of Vacuum Tubes. ... On the negative cycle of the applied ... this feedback action is very pronounced in a triode and causes the tube to act as an oscillator ...
  5. www.techwarelabs.com/reviews/audio/​symphonic-designs   Cached
    ... making them viable to use them in low distortion circuits with little or no negative feedback; ... Vacuum tubes may have a shorter working life than solid ...
  6. ken-gilbert.com/vacuum-tube-faq   Cached
    The Vacuum Tube FAQ by Henry Pasternack Originally posted on rec.audio.tubes Edited/formatted by Ken Gilbert --- Q: Briefly explain vacuum tube
  7. forum.allaboutcircuits.com/​showthread.php?t=78437&goto=...   Cached
    Vacuum Tube + Negative Feedback Experiment General ... I know I could do it using solid state op amps but the geek inside of me wants to do it using vacuum tubes.

  8. Vacuum tube - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Integrated_​circuit_vacuum_tube   Cached
    Vacuum tubes are thus used for rectification, amplification, switching, ... are direct-coupled and apply a high degree of linearisation by negative feedback.

  9. Negative feedback - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Negative_feedback   Cached
    Negative feedback occurs when the result of a process influences the ... and patented by him in 1934. Fundamentally, all electronic devices (e.g. vacuum tubes, ...
  10. cc.cust.edu.tw/~chudong/elec3.doc
    File format: Microsoft Word
    What is negative feedback? ... these devices resemble vacuum tubes, ... When the signal appears each tube conducts over half of the cycle. The two tubes work ...