Microphonic from Vacuum Tubes?

I doubt that tube dampers will do anything for the cause of the popping noise.  This is a problem with a tube, a problem with a tube socket (this is the most common source of such problems) or a problem somewhere else where a charge builds up and then suddenly discharges (probably somewhere in the power supply circuit). 

Tube dampers work to minimize microphonic ringing, but that is not an issue here.  Do they improve the sound?  In some cases they do, in others they make the sound "drier" which may actually make the sound less pleasant.  Consider tube dampers and other damping products (platforms for gear, weights to put on the chassis, etc.) as tuning devices--they alter the sound which means they can also alter the sound in the wrong way.

So far I've only experienced this issue while streaming from Tidal or my own MinimServer running on my NAS.  

@xcool Really! That is telling you something.

In that case play the LPs only for a week. If you don't hear any pops, I'd look into issues with your digital setup- as @acman3 points out, digital is quite capable of making loud pops!

OP,

I do not think tube dampeners would help popping.

If a tube is the culprit, I would find it and eliminate it. It means there is a big bursts of electrons jumping between the plates… that should not happen. I personally do not want any badly behaved tubes in my system just in case it foreshadows a failure. Although cataclysmic failure are uncommon, they are not unknown.

If a capacitor, would get that fixed as well.

I am not an electrical engineer, but have enjoyed and successful employed tubes for decades. I have never had a bad event. But I very occationally get a badly behaving tube and get rid of it.

Thanks everyone again for your advices and sharing your experiences.  I will post an update if I’m able to make any progress on tracking this down.   Who knows, it might not happen again 😄

I sometimes get a pop noise when a major appliance turns on….like the heat or air conditioner. I have 2 dedicated lines and it still happens sometimes.