- Apr 23, 2020
- Reaction score
Hey bluesky636. You make a good point. However, just based on thickness of glass alone and all else the same, that is a pretty clear sign of improved materials, and suggests an increase of lifespan can probably be expected compared to the thin version.No argument there. But trying to equate the sound quality and performance of a tube based on some physical characteristic like the OP asks is a waste of time and money.
BTW, to the, all tubes should all sound about the same camp, how does military spec, of the same tube type, fit into the homogenized idea, that if the tube specifications do not vary for the same type of tube, so it should just sound and perform roughly the same?
I think most realize military spec is purpose-built to last much longer than standard spec. So, wouldn't that challenge, if not modify the idea, that how you build the tube differently, should not matter significantly to the sound and performance of the tube, as long as it meets the tube's rated physical specs?
Seems obvious to me that preamp tubes can make large sonic differences from brand to brand, and model to model, and time to time, and amp to amp, and ear to ear. Seems to me it's similar with power tubes, but perhaps the differences tend to be not as dramatic.
For those who say there is not much difference, please list how many different kinds of tube makes and models you've changed out. Seems pretty obvious to me that both power tubes and preamp tubes, have various sonic differences, even in the same tube specification, like 12AX7, or EL34.