Ralph,What value of B+?since those tubes you got from the seller, he already applied B+ on them when they were tested.And one more thing about cathode poisoning if you run it for 3 days?
If you want some of the best matched and quietest tubes available try Roger Modjeski at The Tube Audio Store/RAM Tubes. I also like Andy at VTS as well.
@atmasphere Is preconditioning what tube-sellers are usually talking about when they offer 24 hour burn in of power tubes?
Generally not.
Ralph,What value of B+?since those tubes you got from the seller, he
already applied B+ on them when they were tested.And one more thing
about cathode poisoning if you run it for 3 days?
If the tube is going to be properly preconditioned, B+ simply should not be applied until after the preconditioning is complete.
I just bought some Mullard CV4003 from upscale audio, communication/recommendations was excellent. Not an opinion on the quality of the tubes as I have not received them yet.
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