Hi Sorlowski-
I suggest you go to www.vacuumtube.com. Place an order for The Vacuum Tube Valley Quarterly, Issue 19. Read the article Why NOS Tubes Are Better. This article provides and excellent discussion regarding NOS vs. new production tubes. This issue also contains a shootout for 6550/KT88 tubes in both guitar and hi-fi applications.
Regards,
Don
I suggest you go to www.vacuumtube.com. Place an order for The Vacuum Tube Valley Quarterly, Issue 19. Read the article Why NOS Tubes Are Better. This article provides and excellent discussion regarding NOS vs. new production tubes. This issue also contains a shootout for 6550/KT88 tubes in both guitar and hi-fi applications.
Regards,
Don