I hope I'm not bothering you with these typos. Vol. III - Semiconductors, Electron Tubes, The triode: in the second paragraph below the "Triode amplifier circuit" figure, in "neither of these independent variables have . . .", "have" should be "has".

 

Not a problem Fred, were glad you are suggesting corrections.

See: http://www.allaboutcircuits.com/vol_3/chpt_13/3.html

I am of the opinion that its should remain as "have" because the reference to "independent variables" is in the plural.

Dave