From: lcargill99@comcast.com   
      
   jurb6006@gmail.com wrote:   
   > Actually Phil has a point. If you are after the characteristics of a   
   > triode, a depletion mode JFET is practically identical except that it   
   > can conduct in reverse. If you don't intend to use a transformer that   
   > trait means nothing.   
   >   
      
   Huh. That certainly does simplify things. I just don't want to make a   
   lot  of measurements that depend on understanding a transformer well,   
   and I was thinking I could vary the gain between the two halves of the   
   preamp to explore asymmetry.   
      
      
      
   > If you really want to emulate tube sound you might consider building   
   > a micropower output with tubes and actually feed a speaker. You could   
   > even build a box for the speakers and mike, a properly placed baffle   
   > with properly placed vents and a properly placed mike would be about   
   > as close as it gets. Set the B+ low enough so it actually clips the   
   > output stage and you should be good to go, and I don't see many of   
   > that type of devices out there, but I don't look either. I did work   
   > in the field for a time and I think I would have noticed.   
   >   
      
   Interesting thought, but this is less a working DI and more like a test   
   bench.   
      
      
      
   --   
   Les Cargill   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)