Driver Tubes 6922

Tony I wouldn’t worry so much about it if the seller will replace a noisy or bad tube. Your going to get bad tubes it’s just going to happen. I’ve  been buying most of my tubes used from the same brick and mortar tube store for the last 15 years with great luck.
 

Much cheaper, I just bought some used12ax7’s that test new last week. RCA 60’s black plates $45, 60’s Telefunken smooth plates $55, 60’s Mullard Blackburn plant $45. el34 Mullard xf2’s $100 each. 60 day return no questions asked. Thats pretty much half off NOS tubes. 

I've also use Brent for NOS he has always backed up his tube I ended up with a noisy 6922 bugle boy, he had one sent out same day, I do stay away from eBay. Find some good dealers and stick with them they will do you right.

@paulcreed 

So....Does this brick and mortar place have a site or a name? You can DM me if you are worried about a rush. :-)

BTW, the RCA Blackplates I purchased from Brent were $40. The mullards were $50.

Ok, on the replacement tube from Brent and the other AT7.

1st night the new tube (no pun intended) was quite noisy intermittently which I have read is normal on an actual new tube :-), 2nd night the new tube quieted down but intermittently whistled in a very high pitch.

2nd day, the other At7 whistled on startup. I tapped the tube and it is fine now.

Hopefully the whistling will not be a normal occurrence as I woould like to replace the cover on my pre.

Anyway, there we have it. Sounding awesome at the moment.

TD

For any tubeheads on this thread. Things are sounding sublime.

I replaced monoblock input AX7's, and the AT7's in the pre....

Should I even worry about the 6922's in the monoblocks?

Thoughts and experiences as to amp drivers?

I think because of logevity issues, I will stick with modern GLKT77 power tubes.

Thanks

TD

@tonydennison interesting I have not had those kind of noise issues with my many tubes. Any tube noise issue I have had was a sign of a bad tube and didn’t get better with use  …those GL KT 77 are fantastic tubes…no need to replace those until they wear out.  Get some 6922’s first.