SYLVANIA 6SN7 GT VT-231 TUBO 1940S TOUGH DOG U.S. ARMY SIGNAL CORP SET ABBINATO

SYLVANIA J A N C H S. EARLY-WAR SYLVANIA VT-231 6SN7GT – “WHITE MICA” TOUGH DOGS | JAN-CHS MATCHED PAIR. A clean, matching pair with identical construction. Not your later thin-run VT-231s—these are early-war builds with substance, balance, and longevity.

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