Glossary · Parameters
μ (mu)
Also called: mu, amplification factor, voltage gain factor
Amplification factor: the ratio of plate-voltage change to grid-voltage change at constant plate current. A figure of merit for triodes (e.g. 12AX7 μ=100, 6SN7 μ=20). Mathematically μ = gm × rp.
En français
Coefficient d'amplification : rapport entre la variation de tension de plaque et la variation de tension de grille à courant de plaque constant. Figure de mérite des triodes (12AX7 μ=100, 6SN7 μ=20). Mathématiquement μ = gm × rp.