I too compared 6922’s 20 years ago, and I found that the best tubes were also the best bargains for what they were: HP branded. Back in the day, stories circulated that engineering students got part time work at HP testing tubes - and rejecting 95%. Let that sink in - rejecting 95% of NIB premium military tubes.
Guess that’s why the moon shots came off.
The best 6922’s were pinched waist Amperex until I discovered HP selected tubes, and the best available to me were the 1962 Telefunkens. These are so rare that most people have never heard of them, or even doubt their existence. Made the Plain Jane 1961 TF 6922 sound like garbage. I bought the last NOS sleeve of early HP/TF that I saw, back in ’98. Good luck finding more.
Guess that’s why the moon shots came off.
The best 6922’s were pinched waist Amperex until I discovered HP selected tubes, and the best available to me were the 1962 Telefunkens. These are so rare that most people have never heard of them, or even doubt their existence. Made the Plain Jane 1961 TF 6922 sound like garbage. I bought the last NOS sleeve of early HP/TF that I saw, back in ’98. Good luck finding more.