All preamp tubes in my VH-4 are RFT tubes (V7 special phase inverter tube, I think type 12AT7). I bought them cheap for around 8 EUR apiece some years ago. I like the sound of my VH-4 very much, it's definitely darker sounding with the RFTs than with the JJs - but I use a Tele most of the time so a little darkness is just right to tame this beast
So Olaf, do you think, it's overkill/wastage to use RFTs from V1-V7?
Just an update.....I bought a RFT and put it in V1 and it is . It has a little more gain vs the chinese but it's much less compressed and sounds thicker and wilder on channel 3 and 4. I'm REALLY digging it.