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In Reply to: Tung-Sol 12AX7 - Copper getter posted by Byrd69 on July 27, 2021 at 07:17:36:
I've looked at a lot of vintage Tung-Sol 12AX7, and have never run across one with a copper getter wire. I'd say it is a rarity. It definitely is a Tung-Sol style, mounted on a wire "stem" and with the characteristic down-angled bend. It appears to be an early version, and the plate "tabs" (portion of the plate that protrudes through the mica spacers) are cut flat like their earliest 12AX7. I'd guess it is from the mid-'50s or earlier.
Tube producers experimented a lot in those days.
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- RE: Tung-Sol 12AX7 - Copper getter - opalize 20:37:15 07/27/21 (0)