Cathode Follower

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cathode follower

[′kath‚ōd ‚fäl·ə·wər]
A vacuum-tube circuit in which the input signal is applied between the control grid and ground, and the load is connected between the cathode and ground. Also known as grounded-anode amplifier; grounded-plate amplifier.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cathode Follower


an amplifier of electric power inwhich, as a result of strong negative feedback, the output voltageacross the load in the cathode circuit of an electron tube isapproximately equal to the voltage at the input (it follows thevoltage).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.