Example of single tube triode grid-leak receiver from 1920,
Example of single tube triode grid-leak receiver from 1920, the first type of amplifying radio receiver. In the grid leak circuit, electrons attracted to the grid during the positive half cycles of the radio signal charge the grid capacitor with a negative voltage of a few volts, biasing the grid near its cutoff voltage, so the tube conducts only during the positive half-cycles, rectifying the radio carrier.
Size: 1551px × 1546px
Photo credit: © FLHC 61 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, antique, artifact, bygone, educational, grid-leak, heirloom, historia, historic, historical, history, information, informative, knowledge, learning, nostalgia, nostalgic, radio, rarity, receiver, relic, triode, vintage
