jackson111
New member
I have a carvin x100b and I have noticed that the tubes that came stock in it are labeled PM tubes. they are EL34's. I never have heard of this brand before but I like the tone of the tubes so I assume they are a quality tube. I have also noticed that Carvin sells the tubes on their site for replacement tubes other then that I cannot find any other information. just curious of their country of origin, and why information is so hard to find on them.