Does anyone have knowlege of how a differential dc amplifer circuit opertated. I try to build a kind of "single input, single output" diff amp in the multisim just like in my book "introductury semiconductor electronics", but have no idea why the output gain isn't equal to the voltage gain of the common base amp, perhap something wrong with my circuit schamatic.
I include here the picture how that circuit looks like in multisim version 8.
I include here the picture how that circuit looks like in multisim version 8.