[Ralph Barone[_3_]]

geoff wrote:
On 11/02/2018 4:38 AM, Scott Dorsey wrote:


Indeed, this is true. Switching supply noise does not sound like a hum.
Distinguishing hums, buzzes and hisses is half the struggle.

The original poster claims to have a hum.
--scott



Stuck B key ?

;- )

geoff


Bb if memory serves correctly.

PS: the OP just said lately that her keyboard could be battery powered if
desired. I think that's the big test to show whether the "hum" is coming
from the power supply, or the cable to the mixer.