TUBE HELP with 5AR4 Rectifier


I just picked up a Tube Phono Preamp which uses a 5ar4 Rectifier tube...
I have (3) to choose from and would like to know which would work the best in the unit..

SOVTEK
RUBY
JJ

I know there are some really nice rectifier tubes out there but these are what I have to work with now...and I do wish I had some Phillips Miniwatts to try.
Your input is appreicated
dgordonl

Showing 1 response by bojack

I may be wrong, but aren't rectifier tubes out of the signal path, i.e. they do not amplify? If so, how would they make a difference in sound?