John Doty wrote: >>> So will the 6L6, but few engineers ever have reason to design with >>> one. >>> >> However, those who do make oodles of money. Audio freaks seem to have >> pockets of infinite depths. > > Sure, but so what? There's no need to train the average EE to do this > work.
this thread has degenerated a bunch, but.... I would argue that the average EE *should* be able to design with a 6L6. Actually, maybe something like a 12AX7 (triode) would be better. Why do I say such a crazy thing? Because if a school has done a decent job with its undergrad program than you should be able to go to an engineer with no experience using vacuum tubes, hand him/her the appendix from Gray and Searle that does a basic derivation of a triode operation, hand him/her a datasheet and a schematic and they should be able to right away analyze the circuit and tell you what it is and the basics of its performance. A small signal model is a small signal model. If you've drawn a load line the exact device at hand shouldn't matter. If you understand the idea, the specifics are just that. Details. Minutia that can be relegated to a cheat sheet (brain swap space). That's the difference between a principles based program and an applications/memorization based program. -Dan _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
