I have Cartridge to Jack Mod, groundSound problem.

Dear Fellow Nerds.

I am a Phd Student investigating the turntable as a musical instrument.
I have a goal right now which is to mod my cartridge to a jack cable. The jack cable goes to my Ria preamp then, and I can’t use the cartridge and needle in various experimental ways.

I have soldered my L+R+ and L+ L- to my jack cables. The idea is to use the cartridge without the tonearm. For compositional research.

Ive run in to a problem however. I know that the grounding (black Wire) is in the tonearm,
And of course when I take the jack outputs to my Ria preamp from the cartridge, I get the buzz/hum/ground sound.

Do you by chance have an idea how I can create my own ground in my setup? Should I rewire? Attach something? Or whatnot.

I have attached a pic of top clear things up.

Thanks on forehand I hope you have a nice day.

Lawand Shakur Othman

An externally hosted image should be here but it was not working when we last tested it.



Cartridge-Mod-vinyl — ImgBB
 
Hi welcome to the forum.

Normally you don't solder to the cartridge, clips that slide onto the pins should be used.
Phono signals are highly prone to hum and buzz for several reasons, the major ones being the low level output and the large boost given to the low end my the RIAA EQ.

For what you are doing, you'll need to shield that cable. Perhaps you could steal the shielding off another cable, or better yet, use a stereo shielded cable to begin with. That will go a long way to reducing noise. You might also have to shield the cart itself if you are putting you fingers on it.

Good luck!