Allowable DC Current for a Phono Cartridge

[jackinnj]

The LM833 circuit from National was one of the first I had built.

When you DC bias a coil you establish a means of mechanical distortion.

My input bias issues are gone forever -- I use SY's "His Master's Noise" preamp with Sowter transformers!

 

[hesener]

Hesener, the offset trim in the Paradise does not only null the input DC offset but is also a feedback loop that erodes the differences in the NPN and PNP compliments.
It also affects distortion ( lowers it when DC nulled ) so no wonder it sounds better when it is adjusted right.

so its a triple whammy, even better 😀