The 12AU7 always is the culprit!
Try using the Amperex 7316 which is WAY more extended in the highs,or maybe a Syl. 5814,or a Tele 802S(expensive).
In some applications an E80CC may be used(draws more filament current,but sounds better).
The difference between Mullard and Tele was mentioned.
Try using the Amperex 7316 which is WAY more extended in the highs,or maybe a Syl. 5814,or a Tele 802S(expensive).
In some applications an E80CC may be used(draws more filament current,but sounds better).
The difference between Mullard and Tele was mentioned.