2 x 6sn7gtb RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester prepared by Paul Hart of Roswell Ga. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.
Item Tag: RCA
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2 x 6sn7gtb RCA Tubes*Black Plates-D*Clear Glass*Very Strong Matched Pair*#15
2 x 6sn7gtb RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester prepared by Paul Hart of Roswell Ga. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.
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RCA 6SN7 GTB TUBE 1968 GLOW TOPS 2 HOLE TOUGH DOGs TALL BOTTLE MATCHING SET NIB
🔥 RCA 6SN7GTB – NOS/NIB – 1968 Date Code BX – Genuine RCA Radiotron 6SN7GTB matched pair 🔥. TOUGH DOGS. 📅 Date Code BX = September 1968 RCA production. TALL BOTTLE. PERFECT MATCHED SET. ✨ Tall bottle construction.
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RCA 6SN7 GTB TUBE 1962 TOUGH DOGS 2 HOLE BLACK LADDER PLATES MATCHING SET
Production Year: October 1962 December 1962. TOUGH DOGS. 2 HOLE PLATES. MATCHED SET. Closely Matched Codes: LM LV. I mark every tube in order to avoid tube rolling! EXCL USIVE HIGH FIDELTY TUBE. BEST TUBES ON THE MARKET. NO LEAKS. NO SHORTS.
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RCA 6SN7 GTB TUBE 1950s TOUGH DOGS 2 HOLE BLACK LADDER PLATES MATCHING SET
Production Year: 1950s. TOUGH DOGS. 2 HOLE PLATES. MATCHED SET. Closely Matched Codes: KC L#. I mark every tube in order to avoid tube rolling! EXCL USIVE HIGH FIDELTY TUBE. BEST TUBES ON THE MARKET. NO LEAKS. NO SHORTS.
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RCA SELECTRON 6SN7 GTB TUBE 1957 TALL BOYS CHROME TOPPED HALO MATCHING SET NIB
Production Year: October 1957. PERFECTLY MATCHED SET. Matched Codes: AE 743. I mark every tube in order to avoid tube rolling! ULTRA RARE HI FIDELITY VALVE. 2 HOLE BLACK LADDERS. Tall Black Base. BEST TUBES ON THE MARKET. NO LEAKS. NO SHORTS.
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RCA 6SN7GTB Staggered Black Plate Tubes PLATINUM MATCHED on AT1000 – TESTS NOS
RCA 6SN7GTB – TESTS NOS. These RCA 6SN7GTB have a rich harmonic structure with excellent imaging and a sweet non fatiguing sound performance. They are especially known for their outstanding imaging and low level resolution.
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(2) RCA 6SN7GTB Vacuum Tubes Long Black Plates Bottom D Getters Tests NOS
(2) RCA 6SN7GTB Vacuum Tubes | Long Black Plates | Bottom D Getters. Tube 2 Emissions 93% & 93% | GM 100% & 100%.
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⭐USA⭐Test NOS Matched Pair RCA 6SN7GTB 6SN7 BLACK PLATE Tube TV-7 LOT #1A+++
6SN7GTB 6SN7. ( LOT #1A+++ ). Tested NOS NIB! TUBE’s TEST RESULT’s Big Base Tube. Bottom Hanging D Getter! BLACK PLATES! ( USA ) .