[fuens]

Hello
I have a new operational amplifier.
I hear background noise and in the end I found RFI.
I installed around opamps aluminium foils (faraday shield) and disappeared background noise.
My questions are:
Is it the same effect with an aluminum sheet?
Or is it preferable to use an cooper sheet?
 
Thanks on advance
 
Cheers

 

[fuens]

BUMP
 

 

[DefQon]

Quote:

Is it the same effect with an aluminum sheet?
Or is it preferable to use an cooper sheet?
 

Both shield RFI and EMI.