balanced preamp/tubecad build?

[miep]

Hey everybody

Did someone build that preamp from tubecad?

https://tubecad.com/2021/06/blog0537.htm

Any experience or thoughts?
Thank you in advance

 

[Shoog]

Thats a fairly standard circuit with Aikido noise cancellation added. Should sound excellent,

Shoog

 

[Steve Morley]

I've built non-balanced 6DJ8-based Aikido line stages. The one with both supplies regulated (fil. and B+) sounded especially good.

S.