call Jim Sautter at Absolute Tubes 563-381-2189
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Hello. Are you sure that the 6DJ8 orange label is an "A" getter and not an "A" frame?
What else does the 7308 read on the tube? A 7308 labeled "USN-CEP" (military labeling) is the same as a 7308 labeled "PQ"
I believe that the 6DJ8 has a slightly higher voltage gain but both types can be used. I once had a SFL-2 and used 4 stock Sovtek 6922 and 4 vintage premium 6922 for the critical inputs (line stage). I preferred some Siemens 6922 and to my ears and setup, it bested the Amperex 6922 PQ's.
For lotsa tube info visit "Joes's Tube Lore" on Audioasylum.com There are detailed descriptions and comparisons for many 6DJ8 types.
Thanks so much for the help.
PS. To Dogpile, actually I am not sure whether it's A "frame" or "getter". I just use the word "getter" as that word was used to describe some of the amperex tube by some sellers.
The labeled on the 7308 is mostly unreadable. So I could not confirm whether it has "USN-CEP" label.
Once again, thanks so much