hey guys im completing my 100 watt OTS and wondering what is the best tubes for this amp. These are what i am considering: TAD 6L6WGC short bottle, TAD 6L6GC tall bottle, Groove Tubes GT 6L6GE US made General Electric short bottle clone, and Russian new production Tung Sol 6L6GC. I have jj when i got the kit which i will use, but i plan to switch them out pretty quickly. For the preamp i am looking to get some NOS 12ax7 tubes. Has anyone used NOS in their preamps? Im especially interested in V2 preamp tube since this is the position that is overdriven for the overdrive channel. Any experience on the tones of different 12ax7 makes in that position? also different origins such as NOS, Russian, Chinese? What do you guys think?

I have a terrible time with the sovtek power 5881. I have had terrible rattling after a week in one of my combo amps and then mirophonics devloped due to the excessive rattling. Also they call them 5881 but they are really 6L6GC's. All of thier tubes seem very misleading in how they are labled.