Tube Flavor


Whats the best way to get a true taste of different tubes?  Should I change all preamp and power tubes with the same manufacturer?  For instance, I think the best way to truly understand a certain cable companies flavor is to have an entire spool of the same cables, ie all Analysis Plus Solo Crystal Oval 8’s...

I feel like cables, tubes, even equipment each has its own flavor or house sound.  
So, now that Im going to swap some power tubes should I get a matching set of pre amp tubes too?  I feel like if I have 3 or 4 complete sets, i can get a feel for each and THEN start mixing and matching accordingly,

Anyways, this tube stuff is fun and it sounds so dang good to these ears that I wont go back if I can help it.
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Make sure you go for nos tubes from someone like andy's tubes he has a wide selection of different brands to try and he can help you with the selection process but you want to change the driver tubes first because they will have the most effect on the sound then go for the power tubes but they will all make a difference over new tubes and they will last up to ten times longer than new tubes.
Didn't you just get a Raven? Tube rolling is such a crapshoot I heartily recommend against it. There's easily a dozen better things you could be doing instead. UNLESS that is you happen to own a Raven. In that case then you call Dave Thompson. I have rolled tubes before and would never again waste my time- until I get my Raven and even before it comes will be consulting with Dave on that. Totally the way to go.
I also have Raven Nighthawk and agree 100% with Miller carbon, speak to Dave Thompson...I did and he knows tubes and how they affect his gear. He is extremely knowledgeable and cares about his customers having the best experience with his gear...good luck!