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Premium Framed Print : Early electronic valve, diagram
Framed Photos from Science Photo Library
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
17"x15" (43x38cm) Premium Frame
FSC real wood frame with double mounted 10x8 print. Double mounted with white conservation mountboard. Frame moulding comprises stained composite natural wood veneers (Finger Jointed Pine) 39mm wide by 21mm thick. Archival quality Fujifilm CA photo paper mounted onto 1mm card. Overall outside dimensions are 17x15 inches (431x381mm). Rear features Framing tape to cover staples, 50mm Hanger plate, cork bumpers. Glazed with durable thick 2mm Acrylic to provide a virtually unbreakable glass-like finish. Acrylic Glass is far safer, more flexible and much lighter than typical mineral glass. Moreover, its higher translucency makes it a perfect carrier for photo prints. Acrylic allows a little more light to penetrate the surface than conventional glass and absorbs UV rays so that the image and the picture quality doesn't suffer under direct sunlight even after many years. Easily cleaned with a damp cloth. Please note that, to prevent the paper falling through the mount window and to prevent cropping of the original artwork, the visible print may be slightly smaller to allow the paper to be securely attached to the mount without any white edging showing and to match the aspect ratio of the original artwork.
FSC Real Wood Frame and Double Mounted with White Conservation Mountboard - Professionally Made and Ready to Hang
Estimated Image Size (if not cropped) is 20.8cm x 24.4cm (8.2" x 9.6")
Estimated Product Size is 38.1cm x 43.1cm (15" x 17")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with portrait (vertical) orientation to match the source image.
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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