23 Apr
2011
23 Apr
'11
8:58 a.m.
On 23 Apr 2011 at 0:09, Brent Hilpert wrote:
- The control grid is usually but not always the first
grid after the
cathode.
Interestingly, some early models of the Audion put the grid on the
opposite side of the filament from the plate. If you look at
DeForest's patents, it's pretty clear that he had no idea of how his
Audion really operated.
There's a web site, showing how to emulate an audion using a 6AX5
full-wave rectifier (no "grid" per se):
http://www.angelfire.com/electronic/funwithtubes/Build_an_Audion.html
--Chuck