I agree with the above posters. I like any of the European vintage 6922's and 7308's. If your C-J uses 6DJ8's and isn't too hard on the tubes my favorite 6DJ8 type is the earlier Siemens CCa. Big, smooth, full with tight bass and huge soundstage. These tubes show up from time to time on Audiogon. Just make sure they are 1960's vintage or earlier. They were also made in the 70's but sound much more ordinary.
