Tubes vs. Fets, Mu?

[Arno van der Heijden]

What characteristic parameter of a Fet can be compared with the Mu (gain factor) of a tube?

[RDV]

Forward Transfer Conductance?

RDV

[Arno van der Heijden]

bump

[Arno van der Heijden]

C'mon!!?
This question can't be that hard....  :?

[spongebob]

Forward Transfer Conductance?

Isn't that it what you are looking for? If I remember it correctly, the gain of a FET is defined by its transconductance and the size of the source resistor. I don't know much about tubes, but don't they have their transconductance specified in datasheets too?

[DDD]

transconductance? transconductance!