Does grid current flow in a grid-bias...

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Question 1 of 20jDTUOwZIjoEDOK9AWxaj

Does grid current flow in a grid-bias modulated stage under modulated conditions?

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Question 1 of 20

jDTUOwZIjoEDOK9AWxaj

Does grid current flow in a grid-bias modulated stage under modulated conditions?

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🔍 Key Concepts

• Behavior of a grid-bias modulated stage in radio transmitters • What happens to grid voltage and grid current during the positive and negative peaks of an audio-frequency (AF) cycle • How grid current affects the shape (linearity) of the modulation envelope

💭 Think About

• Think about when the control grid is driven more positive relative to the cathode: under which part of the AF cycle does that occur, and what does that allow to flow? • Consider whether the presence of grid current is always bad, sometimes acceptable, or never present in proper grid-bias modulation. • Ask yourself: if grid current flows only during certain parts of the AF cycle, what effect might that have on the waveform—could it change its shape and introduce distortion?

✅ Before You Answer

• Review how a negatively biased control grid normally operates in a vacuum tube and under what conditions it starts to draw current. • Verify what happens to the linearity of modulation when the grid begins to draw current on signal peaks. • Confirm whether both the existence of grid current under certain AF conditions and its potential to cause distortion can be true at the same time.

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Question 1 of 20jDTUOwZIjoEDOK9AWxaj

Does grid current flow in a grid-bias modulated stage under modulated conditions?

Back

Question 1 of 20

jDTUOwZIjoEDOK9AWxaj

Does grid current flow in a grid-bias modulated stage under modulated conditions?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed