Hey All, need your opinions, educated guesses, or just straight up 'i know what that was'.

Just flipped on my Golden Tube SE-40 amp and about second after or so I heard, wifie did too, a POP that was about as loud as one of those small 'blackcat' fireworks.

I saw just the hint of a flash and wifie seems to think it came from one of the tubes.

I let the amp warm up still, didn't smell anything, sound still coming out of both speakers and sounds normal. Highs are there, mids, and lows, all there.

What could/should/ it have been. All tubes seem to be heating up and glowing, no burnt smell. Did I get a lucky break or did something go wrong and I just can't tell. And if that is the case, what does that really say about the amp? yikes!

Anyways, opine on this for me please.

Thanks
-adam

PS, it is Friday night so I hope you all are having a good one or a stiff drink and awesome tunes.