I only had one pair of Bugle Boys and they were a weak measuring pair. So my experience with Amperex tubes is extremely limited. As far as Mullards go, the difference in character can vary so much between factories, production runs and actual models that it is very difficult to make generalizations e.g. that Mullards are mid centric. This isn't the case with the CV2492s which are more linear than all other varieties I've had which are the ecc88s, e88ccs and various "gold pins".
I now rotate between four types the CV2492, Tele CCa redtips, Siemens CCas, and just added the Valvo 7308s that were CCa types from the Holland Amperex factory. I'm enjoying the latter immensely now.
I now rotate between four types the CV2492, Tele CCa redtips, Siemens CCas, and just added the Valvo 7308s that were CCa types from the Holland Amperex factory. I'm enjoying the latter immensely now.