Detection with the Four-Electrode Tube

A mathematical analysis of plate rectification is presented. Results of this analysis are applied to the screen-grid tube of the type Cunnningham CX-322. Experimental data verifying the mathematical analysis as applied to the CX-322 are presented. The results show that the screen-grid detector tube under proper conditions will efficiently utilize the high radio-frequency voltage obtained with the screen-grid tubes used as radio-frequency amplifiers. The square law holds for large input voltages making it practical for the detector to work power tubes of the type Cunningham CX-371.