By Topic

A Survey of the Limits in DC Amplification

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
C. M. Verhagen ; Electronics Div., Technical Physics Dept., of the Central National Council for Applied Scientific Research in the Netherlands (T.N.O.)

The influence of a cathode temperature change of planar diodes and triodes is calculated with the help of extended Langmuir tables. The possibility of compensation of this temperature effect is considered. Two units with a common cathode sleeve show no conclusive improvement in cancellation of the heater effect. The disturbance voltage as a result of anode voltage changes is investigated. Some new compensating circuits are presented, resulting in dynamic and in-phase balance simultaneously for a single adjustment. It is found that for all balanced circuits the stability demand for the supply or auxiliary voltage is nearly the same. The change of tube "constants" with time and the relation between anode current and flicker effect attenuation is investigated. It was observed that the poorly defined position of the heater in the cathode sleeve seriously limits tube stability.

Published in:

Proceedings of the IRE  (Volume:41 ,  Issue: 5 )