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Old 28th August 2008, 02:03 PM   #1
regal is offline regal  United States
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Default Grounded Cathode phase?

What is the phase of an output taken from the plate of a grounded cathode? Is it inverting or normal polarity ?
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Old 28th August 2008, 02:15 PM   #2
SY is offline SY  United States
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Inverting.

As a signal goes positive, the grid goes more positive (less negative) with respect to the cathode. So the tube conducts more. If the tube is conducting more, it draws more current, the plate resistor drops more, and the plate voltage goes more negative (less positive).

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Old 28th August 2008, 02:57 PM   #3
Yvesm is offline Yvesm  France
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The more I go faster, the less I go slower

And vice et versa.

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