Hi idylldon, you mean even when the component isn't operating, just while power is flowing they'll whine? If so that's good to know.
An update for Deb, I never figured out why my setup produces this noise. In all my googling when I first constructed the chamber I only found one other person on another forum using the same components. I messaged him asking if his chamber was also producing the noise and he said yes but he'd never had any problems so he didn't worry about it. I've used mine now for over a year, never had a problem. I don't know if it's safe, just never had an issue. Hopefully idyll's response means it truly is nothing to worry about.
Thanks for reviving this thread, at least I know I didn't just mess up my connections, or if I did I'm not the only one.