I once heard an old WE205 amp with two of these running an Altec 604 at a VASAC meeting in Silverdale. It was the most immediate and uncolored sound I have ever heard. If I could have bought two, I would have them now. The WE tube is, however, impossible to find.
I have not heard the TJ version, but like the 300b, I doubt if it is in the same league.
I have not heard the TJ version, but like the 300b, I doubt if it is in the same league.