Firstly- Extirpate the Sovteks post haste. They are bad from the start and you are correct never improve. Despite Joe's Lore, my British tube Guru told me to try the CV 2493, because it is the only tube in the family that doesn't sound blike any other it is better. Not even it's more common little brother the CV2492 sounds as good. If you nlike Siemens then chan chances are good that you will like these. They are Military Mullards but don't sound like a Mullard at all.
Upscale has them in stock which is a bit odd. They had not been seen for a long while. The picture shown is unlike any I had seen before. I found them eventually from "Tango Tubes" of Sweden. As probably NOS but they did a great job imitating an NOS tube NIB, properly faded original packing cigar roll paper etc. matched and a royally expensive of course.
I have no idea if they still have these relabelled cheap Sino tubes made to look exactly like the real ones snd even managed to sound just the same as the real ones as wewll. As I said they don't sound like any other 6922 in fact they were given a special ID code E88CC-01.
Happy hunting.
Upscale has them in stock which is a bit odd. They had not been seen for a long while. The picture shown is unlike any I had seen before. I found them eventually from "Tango Tubes" of Sweden. As probably NOS but they did a great job imitating an NOS tube NIB, properly faded original packing cigar roll paper etc. matched and a royally expensive of course.
I have no idea if they still have these relabelled cheap Sino tubes made to look exactly like the real ones snd even managed to sound just the same as the real ones as wewll. As I said they don't sound like any other 6922 in fact they were given a special ID code E88CC-01.
Happy hunting.