Audion

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/audion

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is Audion known for?First widely adopted electronic device capable of signal amplification
2. What is the device classification?Electronic amplifying vacuum tube (initially diode, then triode)
3. What is the inventor?Lee de Forest
4. How does an Audion amplify signals?It has a heated filament, a control grid, and a plate. A small voltage on the grid changes how many electrons flow, making a weak signal stronger.
5. Who invented the Audion and when?Lee de Forest invented the Audion in 1908 by adding a third electrode to a previous diode.

Vacuum Tube: An electronic component consisting of electrodes in a sealed glass or metal envelope, from which air has been removed.
Diode: A two-terminal electronic component that conducts current primarily in one direction, used for rectification.
Triode: A three-element vacuum tube (cathode, anode, grid) capable of amplification and oscillation.
Amplification: The process of increasing the amplitude or strength of an electrical signal.