1940's LIKE OUT OF A TIME-CAPSULE! (N.O.S.) New Old Stock 6SN7GT Dual Triode Perfect Matched Pair. Recommended for: Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier or Cary Audio SLP 05
Last "TROPHY" PERFECT MUSEUM PAIRS or QUAD or OCTET available! "NEW OLD STOCK "USA SYLVANIA 6SN7GT = SAME AS VT-231 WWII BLACK-PLATE 2 STAPLE HOLE "FAMOUS VT-231" AUDIO TUBES, excellent lush
sounding, very rare blackplates from the 1940's USA, identical same tube construction was made for the United States Military labeled VT231.
These rival the RCA 5692 redbase in sound and black-plate construction quality, and are as scarce. Beautiful Sylvania labels, the construction of these to me look to be ENGINEERED VERY WELL AND NEVER TO BE MADE AGAIN!.
IMPOSSIBLE TODAY to find these in PERFECT 3,000/3,000 +/- tubes from 1940's that were never used and testing perfect - SO DON'T SAY I DIDN'T TELL YOU WE JUST FOUND THEM IN LOST TUBE MUSEUM STOCK behind a wall of boxes!
These look like they came out of a "1940's WWII time-capsule" or the Bermuda -Triangle time-warp! WOW!
Here is the pair(s) of NEW OLD STOCK 1940's SYLVANIA 6SN7GT BLACK-PLATE 2-STAPLE HOLE AUDIO TUBES, excellent lush sounding, very rare blackplates from the 1940s, same tube construction was made for the United States Military but labeled VT231. These rival the RCA 5692 redbase in sound and black-plate construction quality, and are as scarce. 1940's War II Era, the construction of these to me look identical to the "Bad Boy" type. VERY difficult to find these in matched pairs! Click on the test pictures and see the phenomenal results, there are pictures of the test results, one picture for each triode or section of the tube. Results 2 is "side 1", Results 1 is "side 2" of each tube. Perfect!..."
ACTUAL PICTURES AND TEST MEASUREMENTS OF THE TUBES YOU WILL RECEIVE
AMPLITREX AT-1000 DIGITALLY TESTED SYLVANIA 1940's 6SN7-GT MATCHED PAIR
SELECT ONE (1) FOR A PAIR or TWO (2) FOR THE QUAD!
New Old Stock 1940's SYLVANIA 6SN7GT
Dual Triode Perfect Matched Pair
BLACK-PLATES
BOTTOM-SQUARE-GETTERS
SYLVANIA NOS BLACK PLATE 6SN7GT BALANCED MATCHED PAIR Perfect Matched Pair
Recommended for:
Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier.
Cary Audio SLP 05
SEVENTY-FIVE (75) YEAR-OLD AUDIO TUBES WITH EXCELLENT VACUUM AND TEST RESULTS
Superior BLACK-PLATES designed for critical applications where 10,000 hour life, close triode section balance, rigid construction and stability are required.
RECOMMENDED FOR:
- Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier.
- Cary Audio SLP 05
- Cary SLP 88
- Cary 805M amps
- Cary 300 SEI
- Mastersound 845 monoblock 2008
- Audio Note M2 preamp
- Aesthetix
10,000 hour low noise Matching Platinum Pair for a 6SN7 CLASS PREAMP
ACTUAL PICTURES AND TEST MEASUREMENTS OF THE TUBES YOU WILL RECEIVE
BEAUTIFUL LIQUID SONIC HOLOGRAPHY
Rarely do you see such a fine NOS tube pair with Perfect Specifications:
PAIR 1: 3,000/3,000 ( 115%/115%) SOLD!
PAIR 2: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 3: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 4: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 5: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 6: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 7: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 8: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 9: 3,000/3,000 ( 115%/115%) AVAIL
PAIR 10: 3,000/3,000( 115%/115%) AVAIL
SELECT ONE (1) FOR A PAIR
ALL PAIRS test a perfect 3,000/3,000 ( 115%/115% ) and all between 8.0+ mA to 10.0mA which is the HIGHEST we've ever seen!
9.0mA and 2.600 GM (2.60mA/V) = 100%
Great 1940's USA tube now extinct in NOS or NOS condition! Made specifically for audio in the 1940's and early 1950's
ACTUAL PICTURES AND TEST MEASUREMENTS OF THE TUBES YOU WILL RECEIVE
Superior designed for critical industrial applications where 10,000 hour life, close triode section balance, rigid construction and stability are required. 6SN7GT BLACK-PLATES were also labelled and synonymous to VT-231
Bottom-square getters and BLACK BASE "BLACK PLATES"
1940's SYLVANIA BLACK PLATE 6SN7GT PERFECT BALANCED MATCHED PAIR
Superior BLACK-PLATE designed for critical industrial applications where 10,000 hour life, close triode section balance, rigid construction and stability are required.
Boxes displayed for Historic Representation and not included in sale - comes in Military kraft-boxes.