is it right for mono

is it right cable for the mic

 

Hello,

Yes. The red core will be the signal, the braid around it will be ground.
The closer the braid is (you will also see it woven around the core) the better the shielding.

Bertus

 

Spelling error: the word is braid, not bread.

 

Dear Sir Let Solder it First then i will let you know after 30 Minutes

 

Hello,

@MrChips , Thanks, spelling corrected

Bertus

 

Bertus Sir Problem Gone But Little RF interference is still there when i record and play i can hear any further modification to completely eliminate

 

Hello,

Could you try to shield the preamp itself?
The best would me a metal enclosure.
For a test you could do the following:
You could wrap some clingwrap (plastic foil) around it (for isolation) and then aluminium foil around that package.

Bertus

 

yes i can try Sir
ok i will shield it Sir Sir one more thing will have to replace output cable because output cable is not shielded

 

Hello,

The output cable should also be shielded.
The signal level in that cable is higher, so the influence will be less.

It would likely also help to make the connection between the mic and preamp shorter.
Between the preamp and computer will become longer that way, with a higher signal level.
Both sides will be with the shielded cable.

Bertus