Pair of Sylvania 6SN7-GTB 3-hole black plate CHROME-Top Audio Tubes in great condition.


Truly beautiful sounding tubes... the famous Sylvania "Holy Grail" of audio pre-amp tubes! Both have very nice bright flashing and each tests strong as new and closely matched electronically to one another.

We've auditioned these in our amp and they sound wonderful, excellent vintage TONE you'll truly appreciate! Bring your amp back to LIFE with these fine vintage preamp tubes! Please see pictures above and test results below...

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Tube Number     6SN7-GTB
Brand on tube    Sylvania
Actual mfr           Sylvania
Country of mfr    USA
Plate style          3-hole black
Glass style         Chrome top, clear glass
Date code          DG, DH
 
Test results (typical new NOS = 3000/3000)

 Tube-1 = 3000/3100
 Tube-2 = 3000/3000

Sold as pair as is, guaranteed as described!