I've just completed my first Ruby Amp on a perf board and it is working though it has a (very) audible hum. I built a first prototype on a breadboard and it was very clean so I know the circuit is a good one and it must be my first soldered up version that is the issue.
I presume that the hum is related to a poor ground somewhere, is that a reasonable assumption? Which is the more likely section to induce the hum, on the input side or the output side? Any suggestions on how best to debug the problem?
Other than the hum, the amp is working fine.
I presume that the hum is related to a poor ground somewhere, is that a reasonable assumption? Which is the more likely section to induce the hum, on the input side or the output side? Any suggestions on how best to debug the problem?
Other than the hum, the amp is working fine.