Thank you for the review. As most ppl, who have tried different variants of ECC35, have concluded that they all have the same sound character. I, however, am quite hesitate to accept it. I have read comments from a vintage tube collector that the first and second version, with black plate and pan getter, sounded more laid-back compared to later version, black plate and D getter. He has noted that his most favorable version is the one with black plate and D getter (note: later version has grey plate and rectangular or D getter - either rectangular or D, whatever you want to call it as I found that it is not really a rectangular shape but rather a straighter D shape compared to other real rectangular shape getter from other tubes.) BTW, he has tens of ECC35 and ECC33, from different version, in his collection. I bet he knows what he is talking about and I am sure some of you here know who am I talking about. You can find his posts at Tubes Asylum, with images, under the name adrianc. Anyway, I have a collection of ECC35 and all of them are slim base (blk/brown) which I believe all are early dated. Except the 3 pcs with no etched code I am not so sure, the rest are from 1347 to RU1. Based on my best observation, they all sounded the same to me. Recently, I have the chance to acquire my first black fat base, with code RU4 B***, which is arriving in these few days. I am eager to find out whether all ECC35 has the same sound character or perhaps not.