Simplistic NJFET RIAA

[tamra]

Hi Salas,
I am thinking to buy rike s-cap2 (C4)for discounted price but it's 2.05uf.
Are there problem for this value or anyway to adjust?

 

[Salas]

Hi,
When you got 20kΩ or higher input impedance line stage its fine.

 

[tamra]

Thank you.
Or I could choice 2.7uf but it's measured higher than 2.7uf.
What if I use 10k pre?

 

[Salas]

For 10k pre 2.7uF is little better. C3 & R7 basically precondition the VLF contour but C4 must not be too small for coupling the next stage.