Preamp Rectifier Tube Confusion

it should work

but just in case, i would write or call primaluna and ask to be sure - they are in california, are usually quite responsive

that way if something goes wrong when u use the tube they will more likely honor a warranty repair

unsolicited rectifier tube advice -- for PL the buck stops at the Mullard or Amperex old stock 5AR4 GZ34 -- it is the best, period

Here's an excellent, (although quite long) thread on just these tubes:

https://www.head-fi.org/threads/dubstep-girls-massive-5ar4-5r4-5u4g-rectifier-review-comparison-rect...

jl1ny, just wondering how you ended up with a 5AR4 in your preamp if it is not spec'd for it?

All you will get with different rectifier tubes is a different voltage drop of the B+ voltage. And a corresponding change in voltages throughout the circuit. Use the rectifier that the circuit was designed with! A rectifier tube is NOT part of the music signal!