12ax7: long plate vs. short plate

[Mr. Willy]

Is there a general difference in tone between long plate and short plate 12ax7’s?

 

[scottosan]

Is there a general difference in tone between long plate and short plate 12ax7’s?

Technically the long plate is more susceptible to microphonics. Tonal, there are other variables to make a generalization

 

[Mr. Willy]

Technically the long plate is more susceptible to microphonics. Tonal, there are other variables to make a generalization

So should long plates be avoided in V1?

 

[scottosan]

So should long plates be avoided in V1?

For a gigging musician yes. I’m am not, and my favorite is a long plate 50s tung sol

 

[Mr. Willy]

Interesting. I did a little tube rolling in my SLO yesterday, and ended up on a long plate NOS RCA in V1. It seems pretty quiet. I didn’t crank it up too much though.