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The History of the 12AX7 Tube: A Cornerstone of Audio

oldschematic - May 13, 2024

The 12AX7, also known by its European designation ECC83, is a legendary miniature dual-triode vacuum tube. Its story is intertwined with the evolution of electronics, particularly in the realm of audio amplification. Here's a glimpse into its past: Birth of a Classic (1940s): Developed around 1946 by RCA engineers in New...

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