Zaikesman, I hope you never hear any of those "ancient esoterica" tubes for yourself.
If you did, you would discover that money invested in premium tubes are often more improvement than twice that amount in equipment upgrades.
Tubes are not just parts, they are the heart of the equipment and almost as important to performance as the design itself.
One last factor to consider. Many of the old tubes such as the KT 77 are known to last 30 years and more. How many Svetlana's and for what amount of money would be required to equal that durability record? Assuming you are willing to take the quality "hit" along with the cash.
If you did, you would discover that money invested in premium tubes are often more improvement than twice that amount in equipment upgrades.
Tubes are not just parts, they are the heart of the equipment and almost as important to performance as the design itself.
One last factor to consider. Many of the old tubes such as the KT 77 are known to last 30 years and more. How many Svetlana's and for what amount of money would be required to equal that durability record? Assuming you are willing to take the quality "hit" along with the cash.