OTL Asylum

Posted by tubetvr on October 29, 2009 at 06:31:25

In Reply to: RE: Not yet because...... posted by 6AS7_6SN7 on October 28, 2009 at 01:27:47

What spice model do you use for 6C33C? All models I have found on internet are useless and give very unrealistic results. The problem is that 6C33C doesn't behave like a normal trode at low currents and very negative bias, the (the curves are very bent). With available models distortion in simulations are too low by up to 10dB.

• I do not have a 6C33 Cmodel - 6AS7_6SN7 04:43:21 10/31/09 (2)
  In Reply to: RE: Not yet because...... posted by tubetvr on October 29, 2009 at 06:31:25

  Sorry, I can not help, I have never tried any 6C33C model.
  
  Best Regards
  Luca
  
  ecc230
  
  

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  • RE: I do not have a 6C33 Cmodel - tubetvr 14:20:46 11/02/09 (1)
    In Reply to: RE: I do not have a 6C33 Cmodel posted by 6AS7_6SN7 on October 31, 2009 at 04:43:21

    Sorry, my mistake, I thought you where using 6C33C, (didn't you used that before?). Anyway, the problem with inaccurate spicemodels is valid for other power triodes like 6AS7, simulated distortion results are usually far away from reality and also sensitive to operating point. What model are you using for 6AS7?
    

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    • This is the link - 6AS7_6SN7 06:22:03 11/03/09 (0)
      In Reply to: RE: I do not have a 6C33 Cmodel posted by tubetvr on November 02, 2009 at 14:20:46

      See
      http://www.duncanamps.com/technical/ltspice.html
      
      The model of 6AS7 tube (tride model) can be freely downloaded in the LTSpice page at duncanamps.
      
      Best Regards
      Luca
      ecc230
      
      

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