Question 1 of 20
Q
What is the main advantage obtained by using two triodes in push-pull in a Class a audio frequency amplifier?
A
Increased power output
B
Cancellation of even harmonic distortion in the output
C
Elimination of DC saturation, elimination of cathode by-pass capacitor
D
All of the above
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Question 1 / 20g6OwzOBJa1qPkxgq0YP7
Question 1 of 20g6OwzOBJa1qPkxgq0YP7

What is the main advantage obtained by using two triodes in push-pull in a Class a audio frequency amplifier?

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Question 1 of 20
g6OwzOBJa1qPkxgq0YP7
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What is the main advantage obtained by using two triodes in push-pull in a Class a audio frequency amplifier?

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🔍 Key Concepts

• Push-pull amplifier operation and how two devices work together • Difference between power output and distortion characteristics • What happens to even-order harmonics in a balanced push-pull circuit

💭 Think About

• When you mirror two identical triodes in push-pull, what happens to signals that are equal and opposite in each half? • In a push-pull stage, how are the fundamental signal and the even harmonics treated differently? • Which of the listed effects (power, distortion, DC conditions) is the characteristic textbook reason designers choose push-pull for audio?

✅ Before You Answer

• Verify how even-order harmonic distortion behaves in a perfectly balanced push-pull stage • Consider whether increased power output is a guaranteed result of using push-pull, or just a possible design choice • Check if push-pull operation naturally affects DC flux/saturation in transformers and the need for a cathode bypass capacitor

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