I have a Little Bear T11 vacuum tube phonograph pre-amp. It has three
Shuguang 6N2-J "Military Grade" vacuum tubes which I want to upgrade. The pre-amp also has a Chinese made 6z4-J Rectifier. The amp also has a switch by each of the three 6n2-J tubes marked 6n2/12ax7 so either can be used.
- What tubes are the equivalent for Chinese 6n2-J tubes?
- If I go with 12ax7 tubes, which are way more easy to find, do I need to change the 6z4 rectifier because of the voltage difference or is it good to go?? On the unit there is no switch for the rectifier like the other tubes do and is just labled 6z4.