🔥 Genuine JAN CHS military production. Fast, musical, and exceptionally refined—one of the most respected Sylvania 6SN7 variants ever produced for high-end audio applications. 💥 Real JAN CHS military Sylvanias.
TUNG-SOL 6SN7 GT TUBE 1946 GRAY SMOKE VT-231 CLASS HIGH QUALITY AUDIO TUBE NIB
⭐ A highly collectible first-generation Tung-Sol featuring classic 1940s construction and the unmistakably musical character that helped define the revered Tung-Sol 6SN7 lineage. 🔥 1946 Tung-Sol 6SN7GT / VT-231 Class – Date Code 322613 🔥.
Sylvania JAN 6SN7WGTA Black Plate NOS matching date pair Tested USA
These are 6SN7WGTA tubes which are the ruggedized version of the 6SN7GTA. They can be used in applications calling for the 6SN7GT and 6SN7GTA. Firm bases, excellent silvering. Tubes are matched for dynamic gain and structure-test at 3250-3250 and 3250-3125 where pass/fail is 1625 micromho.
Pair Sylvania Black Plate Chrome Top 6SN7GTB Tubes STRONG! 6SN7
These tubes test 86/86 and 88/88 where a new tube tests 85/85.
NOS 6SN7 GTB Carbonized Black Plates Ring Getter Mullard Tooling, 1-gold Pin
NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states “Individual tubes, like any manufactured product, may have characteristics that range above or below the values given.