Dude's 6SN7 replacements with Chinese CV-181/6SN7

A top amp manufacturer loves the Brimar but where can I get some ? Ultra-rare, they seem.

My Dude is about a month running in my system now...theres a really lot

to like but tube rolling will be soon... Im assuming the 6sn7s are all i should be looking for...the others just keep in as per Paul
? Thanks

I like RCA tubes from the 40's. The other 6sn7's I like are the black base Marconi's.

The Dude is really amazing sounding and takes about 200-300 hours to fully open up and settle into the sweet music it is capable of. Congrats on your Dude purchase!

Well, I did my "default move" which is to call Andy at Vintage Tube Services again...he had helped me equip my trusty Sonic Frontiers Line 3 Custom Edition with some great sounding tubes so I figured I'd trust him again. I too have RCA 6sn7's coming from him now (they should be here in a day or two) as well as the other 2 too...(6080 and OD3)...they're all vintage NOS late 50's-early 60's which he assured me should sound fantastic and he's matching all 5 6sn7's so anyone can go anywhere (I too have the 2 per channel plus the pwr supply section for a total of 5). I also have the heavy duty transformer and all the accompanying "heavy duty" upgrades...). It IS coooool... What a beauty AND beast wrapped into one unit!
I let it stay ON for almost 30 days straight so it has its 500+ hrs on it but since then I've been turning it off when not in use then powering up when I want to have a dedicated listening session...this normally entails a half hour warm-up period for my [tube] amps anyway so it's easy and no problem. Paul said it will sound fine this way...
I told Andy I wanted rich but detailed sound...no glossy cover-ups, just natural, organic...wide & deep staging...(yes, we all want it all) and he said these RCA's were the ticket. I'll put a few hundred hours on them and hear what's what...
Thanks for the advice Bill and all...
I am curious about those Marconis though...I wonder if a pair swapped with/into the RCA's could be a satisfying combination?

I also purchased my tubes from Andy including the same od3 and 6080 tubes you have coming.

The first thing you must do is get a power cable from Paul. It will be the biggest improvement you will hear without a doubt. I use nothing but Paul wire.