Well, in my country we went into quarantine and I wanted to take the opportunity to build a vibrato with tap tempo, all good but when I connect the mn3102 to the mn3207 in the way shown in image 1, it only gives me noise at the output, but When I connect it in the way of image 2, I have vibrato sound but with a lot of noise, does anyone have any idea what it could be? or where it fails?
--I was wrong in the polarity of the 1uf capacitor but it was only when drawing it, in the breadboard if it is well polarized
image 1

image 2
