tungsten tubes - An Overview
usual values of gm for a small-sign vacuum tube are one to ten millisiemens. It is probably the 3 'constants' of a vacuum tube, the other two currently being its attain μ and plate resistance Rp or Ra. The Van der Bijl equation defines their connection as follows: g m = μ R p \displaystyle g_ m = \mu \about R_ p Large transmitting tubes have car