|Well, the MKIVse is turning out to be a far better unit than I could ever hope for. Everything seems past any kind of break-in period and I have about 300 hours on it. Last week, I ordered a setup of tubes (Phillips Jan 5687WB) to take the place of the Mullards.|
I ordered a pair of these Phillips tubes and they got here today. I must be missing something because they are not a drop-in replacements for the EH 6N30P's that came with my MKIVse. Yes, I saw that Penchums amp has Mullards, but I'm a tube-noob.
I'm thinking that my amp is not configured the same as Penchums. can anyone advise me about these Phillips tubes? Do I just need to make a jumper setting change or are these tubes not going to be compatible?
Thanks in advance
Edit: Ok. I did a little research and it looks like my MKIVse is hardwired for the Russian power tube. The jumpers on mine are only for changing driver tube families. Oh well. I've heard great things about the 6N30P-DR "supertubes". I just wish they weren't so pricey.