I need to model a simple Transconductance amplifier in LtSpice (see photo)...I have not seen a Transconductance parameter (gm) in LTSpice, unless I have over looked it.

Does anyone where/how I can get a simple tranconductance component in LTspice, like the on shows in the picture?

 

Do you know what transconductance really is ?
In LTspice search for "g" source.