[78-L] NULLING VERTICAL COMPONENT - was: stereo/mono and noise reduction

[neechevoneeznayou at gmail.com]

On 11/7/2011 8:18 PM, Mark Durenberger wrote:

> What I find works well is to install a proper combining pad for the outputs
> of the preamp; set the preamp gain controls so the output is approximately
> equal with 'Left-channel-only' and 'Right-channel-only tones'......THEN put
> on the L-R test cut and trim one of the preamp gain controls for minimum
> output.  With a properly tracking cartridge and decent test disc you'll get
> a great null.

If you have an unworn record! Otherwise I find the null is not so great.

The purpose of nulling is to get the same amplitude in both channels. I 
do this when transferring a vertical record.

joe salerno