Basic Radio is a free introductory textbook on electronics based on tubes. See the editorial for more information....

Gas-filled Tetrodes

Author: J.B. Hoag

A variety of striking-curves can be obtained with a given tube by adding a second grid. An example of the changes which can result from change of voltage on this shield-grid type of tube is shown in Fig. 18 H.

Fig. 18 H. Striking curves of a hot-cathode gas-filled tetrode (type 2050)

Last Update: 2009-11-01