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Early electronic valve, diagram
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Early electronic valve, diagram
Audion amplifier. Diagram of an Audion triode valve that was the first amplifier. It was invented by Lee De Forest in 1907. De Forest worked on vacuum tubes, which act as diodes (devices that allow electricity to flow one way only). The addition of a grid (yellow) allowed the amplification of weak radio signals (top), which made radio a practical method of transmitting information
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6431263
© SHEILA TERRY/SCIENCE PHOTO LIBRARY
Amplification Amplifier Diagram Electric Electrical Electricity Electronic History Of Science Tube Twentieth Valve De Forest
EDITORS COMMENTS
This print showcases the early electronic valve, a groundbreaking invention that revolutionized the world of technology in the 20th century. The diagram depicts an Audion triode valve, which was ingeniously created by Lee De Forest in 1907. De Forest's pioneering work on vacuum tubes paved the way for diodes, devices that allowed electricity to flow in one direction only. What sets this Audion valve apart is its addition of a grid, highlighted in vibrant yellow. This ingenious inclusion enabled the amplification of weak radio signals, as depicted at the top of the diagram. As a result, radio transmission became a practical and efficient method for sharing information across vast distances. The intricate artwork captures not just an important historical artifact but also represents a pivotal moment in scientific history. It symbolizes humanity's relentless pursuit of knowledge and our ability to harness electricity for technological advancements. This print from Science Photo Library serves as a reminder of how far we have come since those early days when thermionic valves laid the foundation for modern electronics. It pays homage to Lee De Forest's remarkable contribution to physics and amplification technology while showcasing his audacious spirit that forever changed our world.
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