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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Mystery 12AX7 posted by tlea on March 22, 2025 at 16:32:42:
That's an RCA, from the earliest production era (1947-1952). Note that the black plates are shinier than the flat-black mid-'50s RCA 12AX7, and that the getter wire is a unique wider "D"-shape. They're typically have a bright and clear sonic character, not as thick as mid-'50s, and they don't break up as easily as the flat-black mid-'50s RCA.
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- Earliest RCA 12AX7 1947-1952 - opalize 21:36:03 03/23/25 (0)
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