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In Reply to: ST versus straight-side version of same tube posted by strhd07 on May 30, 2024 at 06:29:14:
In the case of NOS tubes, the difference in shapes frequently indicates a difference in vintage, with the ST shape being older. Straight sided tubes are easier to make, and probably cheaper to make as well. There are some current production tubes that are both, but I haven't listened to them.
Jack
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- RE: ST versus straight-side version of same tube - Jack G 04:48:53 05/31/24 (0)