tungsten tubes - An Overview
standard values of gm for a small-sign vacuum tube are 1 to ten millisiemens. It is among the three 'constants' of the vacuum tube, the other two currently being its achieve μ and plate resistance Rp or Ra. The Van der Bijl equation defines their marriage as follows: g m = μ R p \displaystyle g_ m = \mu \more than R_ p ACM’s Boron Carbide Plat