Hi there

Hope you're well

I finished the build and all worked well for a day or two then one day I turned on the MP573 and there was strange noise floor and random low level pops on audio.

I have rechecked voltages from 'In case your MP573 doesnt work' and there is a couple of discrepencies now. After finishing build, when I checked all these voltages they were nearly perefctly matched to document.

K has a definite problem @.41v rather than 22. C is probaly within tolerance?

e: 197
d: 13.12
f:12.49
a:2.51
b:4.07
c:19.04
g: .93
h:4.1
L:3.03
I: .33
J:3.54
K: .41


The signal is also very distored now and only comes through on very high gain

Any thoughts on what issue might be? 

Many thanks