Thank you for this. I'll order one and compare.
I did some research and I ended up with a Sylvania 6X4 green printing with the triangle logo. $15 and better sounding than the Mullards I had previously in my LL2.1 and LP2.
I did some research and I ended up with a Sylvania 6X4 green printing with the triangle logo. $15 and better sounding than the Mullards I had previously in my LL2.1 and LP2.