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VRD phase splitter tubes - do I have to bias?


Chiliarches

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Howdy all.

 

I have some nice tube monos (VRD monoblocks), but know very little about tube amps.

 

 My kid knocked one of the 12AU7s / CV4003s out of my VRDs and wrecked it (bent pins, frosty top, gas seal must be busted).  I do have some 12AU7s around I could swap in. 
 

QUESTION: In reading the info on the NOSValves website (https://www.nosvalves.com/vrd.htm) it appears that the broken tube is a “phase splitter.”  Can I just swap a new pair of 12AU7s to the appropriate position on each amp or do I need to bias them?

 

Thank you!

 

 

 

 

 

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