Is it time to replace the tubes in my Fender Blues Junior?

[danielgomes]

I was playing my guitar today and was alarmed when I heard the volume of my amp phasing in and out, like I was rolling the volume knob up and down, except I wasn't touching any controls on my guitar while this happened. A few months earlier I noticed my amp started making popping sounds, which never happened before.https://solitaire.onl/ 9apps.ooo/ https://bluestacks.vip/


Is it time to replace the tubes in my Blues Junior? And if so, where should I order from online to ensure I get the proper tubes that are matched as well?