XPost: sci.electronics.design   
   From: donnyduck@gmail.com   
      
   The FET regulator is a filtered servo with fast cutoff and very slow   
   build up over thousands of cycles. The same is done with other   
   non-linear limiters using exponentially orders of magnitude higher   
   resistance when regulating so the decay rate is slow and low distortion.   
      
   Phil I think you had different assumptions for your au contraire opinion   
   on tail currents vs quasi-linear low decay currents when regulated   
   effectively.  I don't see the difference except a non-linear device   
   starts up faster.   
      
   On 2024-11-18 3:14 p.m., Phil Hobbs wrote:   
      
   >   
   > Any oscillator with a nonlinear or bilinear gain control element that   
   > has to respond during a cycle has to deal with the distortion caused by   
   > that element.  OTAs, JFET variable resistors, PIN diode attenuators,   
   > Vactrols, light bulbs, and so on, all have that problem.  Tail current   
   > sources can avoid it, because you can make them as stiff as you like by   
   > cascoding, and filter the control voltage as well as you like.  (I often   
   > use two- or three-pole capacitance multipliers on the supply rails of   
   > discrete circuitry, which is a similar idea.)   
      
   >   
   > Cheers   
   >   
   > Phil Hobbs   
   >   
      
   --   
   Cheers,   
   Tony Stewart   N. Of Toronto   
   EE since 1975 practising retirement since 2004   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)