Originally Posted by C6Silver
I am familiar with noisy servos from various helicopters. This is not the servos. This is coming from the ESC as it is a continuous tonal beat, not a chattering like you'd hear from servos.
I'm not talking about a chatter... I'm talking about a very faint high pitch whine or tone... it comes from the brick because that's where the servos are. Might not be what you're talking about, but when I move the pushrods taking pressure off one of the servos it goes away... not that it needs to go away... I just wanted to know where it was coming from.