Sensationally simple triode simulator

Started by DDD, September 24, 2011, 01:48:06 PM

Previous topic - Next topic

DDD

One more new and very tempting way of the vacuum tube simulating with FET (or BJT). Very simple (!)
Samples, oscillograms, discussion and schematics are in the topic (in Russian):
http://forum.gtlab.net/cgi-bin/yabb2/YaBB.pl?num=1315160328/0

Too old to rock'n'roll, too young to die

CynicalMan

For us non-Russians (and because much of the text seems to be an argument over the meaning of "mojo") here's the original schematic:
http://s002.radikal.ru/i199/1109/56/4a2afd85eb92.gif

DDD's version:
http://img29.imageshack.us/img29/6720/softschem1.jpg

And the translated thread
http://translate.google.com/translate?u=http%3A//forum.gtlab.net/cgi-bin/yabb2/YaBB.pl%3Fnum%3D1315160328/0&hl=en&langpair=auto|en&tbb=1&ie=windows-1251


Gonna try this out in LTSpice, see how it works.

DDD

The "secret" of the circuitry is an interaction of the FET (or BJT - pls see link below) follower with the load impedance. So, the load impedance is to be essential.
Here is BJT version of the subject:
http://imageshack.us/photo/my-images/847/lionbjt1.jpg/
BJT stage oscillograms:
http://imageshack.us/f/692/lionbjtout1.jpg/
Too old to rock'n'roll, too young to die