So, I see in the help center that asking questions about consumer electronics are generally off-topic. I was considering asking about *why* I was hearing a hum at a particular pair of alternating frequencies in a laptop charging brick. I recorded some information such as the period of oscillation and a spectrogram of the noise produced (showing the frequency of the noise).

Would that be on topic here, at a different site in the Stack Exchange network, or not at all?