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53 NOS Raytheon Engraved Base ST bottle Globes Double Triode Power Tubes
NOS is subject to interpretation and there is no specific definition for it either. There are suggestions and opinions. Tv7 tested TUBES. 90 % of our tubes are Tv7...
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US Stock! 4x 6F5P / 6GV8 / ECL85 Triode – Pentode tubes NEW NOS
Tubes are in stock in the USA6F5P (6Ф5П) Triode-Pentode100% New ItemOld stock. The tubes are new and never usedSame Date Codes from 1970's (from same batch)Very careful packingLot of...
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PERFECT PAIR TUBE NOS/NIB VT231 HYTRON JAN-CHY 6SN7GT year 1951
Identical in structure to the WWII era Sylvania VT231. Matched pair. WAVY GLASS - Made in the USA - D getter.
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NOS JAN-CRP-6SN7GT VT-231 Tube TV7 Tested Strong Perfectly Balanced 100/100 💪
Tested for Gm on calibrated TV7-DU & B&K Dyna Jet 707 both testers have if ag 100/100
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MATCHED PAIR NOS NIB VT231 6SN7GT SYLVANIA TUBES PHONO QUALITY NOISE!
THE SYLVANIA VT231 6SN7 TUBE ARE AMONG THE BEST OVERALL 6SN7 TYPE TUBE EVER MANUFACTURED. TUBES TESTED AND MATCHED! PHONO QUALITY NOISE LEVEL IS -82DBV OR BETTER - THESE...
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Four, NEW, RCA, VT-231, JAN CRC 6SN7GT, wartime, smoked glass, match date quad
Silver printed logo bases, black, flat plates, smoked glass. Outstanding sonics. Firm bases, excellent silvering. Tubes are matched for dynamic gain and structure- test at 3500-3500, 3500-3375, 3500-3375 and...
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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...
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(2) Matched NOS NIB Ken Rad 6SN7GT VT-231 Black Glass Military Tubes ~ WWII Era!
WWII era gems. However, we managed to find a small stash of these just waiting 80 years for you to add them to your system. Matched U4 date codes....
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SYLVANIA 6SN7 GT VT-231 TUBE JAN CHS 1942 TOUGH DOG PERFECT MATCHED SET NIB MINT
1942 Sylvania 6SN7GT VT-231 — widely regarded as the pinnacle of early Sylvania VT-231 production. SYLVANIA J A N C H S. Production Year: 1942. PERFECT MATCHED SET. TOUGH...