Fully tested on a Triplett 3444 Minimum good is 1000 Average new is 1600
Item Tag: 6SU7GTY
Tung-Sol 6SU7GTY Tested Good Vacuum Tube Black Plate Aged 48 Hrs
Up for sale is a vintage Tung-Sol 6SU7GTY vacuum tube featuring desirable black glass construction and brown micanol base. This tube is marked “AGED 48 HOURS”, indicating factory quality-control aging and testing prior to release. The 6SU7GTY is a premium low-noise industrial and military-grade tube highly regarded by collectors, audiophiles, and vintage electronics enthusiasts. Details: * Manufacturer: Tung-Sol * Tube Type: 6SU7GTY * Brown Micanol Base * Black Glass Construction * Marked “AGED 48 HOURS” * Made in U.S.A. Condition: * Untested due to lack of testing equipment * Getter flash remains intact * No cracks or chips observed
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1 Tungsol 6SU7GTY 3 Mica Black Plate Vacuum Tube Tested NOS On Hickok
This tube tested NOS on my Hickok 6000a tube tester. Average new tube value- 1000/1000. Tube test Value – 1200/1200. Minimum tube value – 650/650.
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(2) NOS/NIB Tung Sol 6SU7GTY Black Glass Tubes ~DATE MATCHED PAIR~ Test Strong!
6SU7GTY Black Glass Tubes. Up for sale is a MATCHED PAIR of Tung Sol 6SU7GTY tubes. Rare black glass Military version. Matched date codes and round black plates from 1951! (2) NOS/NIB Tung Sol. DATE MATCHED PAIR ~ Test Strong!
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(1) ANOS Tung Sol 6SU7GTY Black Glass Tube w/ Box~ Tests NOS!
6SU7GTY Black Glass Tube. Rare black glass Military version. Black plates. (1) ANOS Tung Sol. Triode 1: 49. Triode 2: 47. w/ Box ~ Tests NOS! These are real gems so don’t let them slip away!
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1950S MATCHED PAIR NOS NIB MILITARY TUNG SOL 6SU7GTY TUBES PHONO QUALITY NOISE!
PHONO QUALITY NOISE LEVEL IS -82DBV OR BETTER – THESE TUBES ARE SUPER QUIET! A HUGE UPGRADE TO MOST ANY 6SL7 TYPE TUBES AND ON PAR WITH THE BEST NOS TUBES EVER MANUFACTURED! TUBES TESTED ON LAB GRADE KS15750 MAXI PRE TESTER AND TUBES EXCEED STANDARDS FOR SHORTS, EMISSIONS, GAS, GAIN, GM, AND SPECIAL HAND SELECTION.
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TungSol JAN CTL 6SU7GTY Matched Pair Great NOS Quality Brown Plate Black Glass
One matched pair of Tung Sol 6SU7GTY tubes with testing information on the side of each box. Tested 7/15/2026. Matched 7/20/2026.
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TungSol JAN CTL 6SU7GTY Matched Pair Perfect NOS Quality Brown Plate Black Glass
One matched pair of Tung Sol 6SU7GTY tubes with testing information on the side of each box. Tested and matched 7/15/2026.
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TungSol JAN CTL 6SU7GTY Matched Pair Great NOS Quality Brown Plate Black Glass
One matched pair of Tung Sol 6SU7GTY tubes with testing information on the side of each box. Tested and Matched 7/2026.
Related Images:
TungSol JAN CTL 6SU7GTY Matched Pair Perfect NOS Quality Brown Plate Black Glass
One matched pair of Tung Sol 6SU7GTY tubes with testing information on the side of each box. Tested and matched 7/2026.