I ordered my tubes from Brent Jesse in Illinois. 12ax7 Amperex Holland Bugleboy and 6922 Amperex USA made white label tube. Holland did not make a 6922. Before this I was using Mullard 10M gold pin tubes from England in both places. It depends on the rest of your system. Mullards bring a warm glow if your system is on the lean side. The Amperex is more neutral.
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