Hello, I'm looking for singles : Brimar 6SN7GTY. NU 6SN7 earliest version. Sylvania Bad Boy 6Sn7. Treasure CV181. TSRP 6SN7 Any help appreciated. Singles only for my DeHavilland UltraVerve PreAmp. If you have ever heard a Mullard 10M ECC82 Gold Pin you'll now the dyed in the wool, tweed early...

Anyone suggest a warm , rosin on the bow, British valve sound with good layering and low level detail. I'm looking for that sweet midrange and clean bass. My CV 181 Black treasure sounds like it has given up. I like the JAN Sylvania short bottle I put in its place but looking at something new...

Hello, I finally found my beloved Sennheiser HD424 headphones buried in a box in my basement! Alas, the foam was shot, I thought it would be, but one of the channels is out. I tried swapping the input cord position but it is truly out. Can anyone direct me to reliable source for repair? I'll...

I now have several different 6SN7 Tubes and can't quite say I'm over the top with any of them as each one seems to have nice attriubutes. Slight ranking in my system thru a deHavilland UltraVerve PreAmp. Sylvania JAN CHS short bottle black base 45' 6SN7W: Nice tube, great midrange and high end...

Can anyone describe the sound of the Osram? Just seems like it would be a nice 6SN7 variant tube.

Can anyone tell me the date code? for a Sylvani 6SN7W Black Plate Short bottle JAN CHS Green Lettering The top of the tube read 6SN7W G 6 Would that be one of the preferred JAN's? I still can't seem to find (1) reasonably priced Metal Base 6SN7W Sylvania

Nice picture. Would that be the Date Code and the best of the brown base to look for? How would it compare to the earlier 6SN7W JAN CHS Black base short bottle?

WTB: Good testing 6SN7 JAN CHS Metal Base or Black base Short Bottle with box from the 1940's. I only need one tested tube, should be easier to source than a matched pair. Reasonable offers only. Please provide pictures. PM, welcome. Thanks for looking.

Would the sound of the brown base 6SN7W JAN CHS sound the same as the Black base? When were the production dates? 1950's?

The numbers are on the tube identifying 6SN7GTB on the side There are no other numbers on the glass itself I thought it read in Red lettering the black base ec ALX Sylvania I will have to sort thru how to post pics via an iPhone.

Can anyone identify the vintage of that tube? Very nice tone, great soundstage and at top end that seems a little shimmery but still has nice sparkle. If the higher end older Sylvania tubes sound better than this one, wow I'm looking forward to hearing it! I still have yet to source a Jan CHS W...

Question to all, I have been tube rolling in my preamp, and have been absolutely smitten with this not so rare, rather common grade, for the most part, Sylvania 6SN7GTB. I'm told that the red lettering on the base was only on hand for TV repairman. This tube has a circle getter average flashing...

Double post

Very good expressive and detailed comments. The exact amount information I have been looking for. I'm out find what I can within reason. I have yet to find a metal base or W, but I'm sure they're out in someone's hands to sell. Interesting comment about the short black base w as being loose in...

Thanks for the reply. I have gleaned the thread here as well as others. Metal base or black W? Any preferences or qualities that can be described?

Longtime silent reader. Great thread! I do not have a headphone rig anymore, mostly the big 2 ch Rig. Raised and acquired a pair of Sennheiser 424's in my youth, paired with dad's Knight tube amp and a beautiful Sherwood receiver the radio never sounded so good, and the Gerrard turntable really...