Audio Glossary

Tube CAD Journal


Copyright  © 1999 GlassWare


a.k.a., the "mu" or "" of the triode; it is the variation in plate voltage divided by the variation in grid voltage while the plate current is held constant, for example when the plate is loaded with a constant current source. The mu of a tube sets the upper limit to the gain that is realizable from a triode in a grounded cathode amplifier circuit.

Amplification Factor