That is the beauty of the MKI in that you can "play" with all type of tubes you describe whereas with the MKII you are pretty much stuck with the 6H30.
I have a REF 2 MKI modified by GNSC with Amperex 7308 PQ white label and RCA 6L6GC blackplate and Philips Miniwatt steel base 5AR4 in the power supply.
Dead quiet. I strongly recommend those tubes with the MKI. Very little experience with the Funken's.
I have a REF 2 MKI modified by GNSC with Amperex 7308 PQ white label and RCA 6L6GC blackplate and Philips Miniwatt steel base 5AR4 in the power supply.
Dead quiet. I strongly recommend those tubes with the MKI. Very little experience with the Funken's.