At the risk of re-posting information from the LP thread, I thought it would be worthwhile to get this posted again in the LP tube rolling thread. The following are some of the tubes that I have rolled in the Platinum and my top choice of each tube type.
2C51/396A/5270 - These work well with the proper adapter. My pick - 50s Foton triple mica
12AU7/ECC82 - These also work well with the proper adapter. My pick - 62 Telefunken Smooth Plate
12AT7/ECC81/6201 - These did not work for me - very audible noise - I tried a variety with differing degrees of noise. Requires adapter and assume the noise problem is related to tube amp factor. 12AT7 amp fact - 66 where 6922 amp factor is 33 and 12AU7 is 16. Based on this I assume the 12AX7 would also not work with an amp factor of 100. I look forward to others trying these to confirm my findings or not. My all time favorite tube pair are 50s Valvo PW 6201s.
I've tried quite a few 6922 and variants which I really like, but the the best sounding tube pair, by far, that I've tried in the Platinum are late 50s Sylvania 6922 D getters. They are rare and very hard to find and I can only hope to come across another pair.
So, that's a start - I have more tubes to roll