Model 6SN7GTB. Condition Tested. ALL TUBE AUDIO. Minimum Good Value: 50/50.
Item Tag: 6SN7GTB
2 Western Union 6SN7GTB Tubes Test Good by RCA
Up for sale are 2 Western Union 6SN7GTB Tubes made by RCA.
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Pair 1957 GE Side Getter 6SN7GTB Tubes STRONG! 6SN7
Pair 1956 GE Side Getter 6SN7GTB Tubes. These tubes test 90/90 and 85/85 where a new tube tests 85/85.
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Matched Pair +1 RCA 6SN7GTB Staggered Black Plate Tubes Balanced STRONG 3pc 6SN7
RCA 6SN7GTB. Matched Pair +1.
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(2) RCA 6SN7GTB Tall Bottle Tubes Staggered Black Plates D Getters Tests Strong
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Sylvania 6SN7GTB NOS/NIB vacuum tubes matched & guaranteed identical codes
Sylvania NOS 6SN7GTB Vacuum Tubes. For sale I have an exceptional matched pair of new in original box Sylvania coin base 6SN7GTB vacuum tubes. I really like these 1960 production GTBs. Linear with excellent noise characteristics.
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(2) Sylvania 6SN7GTB Chrome Dome 3 Hole Black Plate Late 1950s Tests Strong
Tube 1 Emissions 91% & 95% | GM 103% & 103%. Tube 2 Emissions 87% & 112% | GM 107% & 100%.
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MATCHED PAIR PHILCO (Sylvania made) 6SN7GTB Chrome VACUUM TUBES Tested H.9155
Model 6SN7GTB. Manufacture Date 1957-1958 — Sylvania plant, tube manufactured 1957 or 1958. Condition Tested as NOS. ALL TUBE AUDIO. Minimum Good Value: 50/50.
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(2) RCA 6SN7GTB Vacuum Tubes Long Black Plates Bottom D Getters Tests Strong
(2) RCA 6SN7GTB Vacuum Tubes | Long Black Plates | Bottom D Getters. Tube 2 Emissions 86% & 90% | GM 80% & 96%.