Tung-Sol Reissue 6SN7 vs EH 6SN7 - Differences


I ordered a matched pair of the new Tung-Sol 6SN7GTB tubes being made in Russia for my Supratek Chenin preamp and have been listening to them versus the stock 6SN7EH tubes. The Tung-Sols sound a bit fuller in tone than the EH, while retaining the bass and treble extension of the EH - in short, I prefer the Tung-Sols.
Before listening, I examined the two tubes very closely side-by-side, and could not see any differences in construction other than the fact that the Tung-Sol has a black plate and the EH has a gray plate. I was expecting them to sound identical, but I noticed the fuller tone of the Tung-Sol right away. I decided to contact New Sensor and ask them what the difference between these tubes really was.
They answered my email within an hour or so, as follows:

"The Tung-Sol 6SN7 has internal differences. The internal geometry is different and the grids are gold plated."

If we take them at their word, the Tung-Sols are not merely re-badged EHs as has been suggested by some. Thoughts? Anyone else have the same listening impressions as me?
ait

Showing 1 response by larryken

if you want to blow your mind...try some NOS Sylvania 6SN7W's ....you'll think you bought a new amp (a better one to boot)
Larry