GT Output Tube Matching Process....How Was it Done?
Posted: Fri May 20, 2011 11:45 am
I've read a lot of stuff over the years either praising or criticizing Groove Tubes output tubes. While I've never been a big believer in matched tubes for guitar amplifiers but having some that are reasonably closely matched statically makes setting the bias easier.
What I'm wondering is what was the Groove Tubes process? From my understanding the idea was that the tubes were matched according to how and when they went into distortion. They were then grouped together with tubes that distorted in a similar way and then grouped together with tubes that also had a fairly close static match for biasing purposes. Was any of this true? Or was it all "snake oil"?
I've heard people say that their "match" was not as good as tubes from other vendors. This would be true for sure if the static match was being checked yet they were actually matched in some other way....
What I'm wondering is what was the Groove Tubes process? From my understanding the idea was that the tubes were matched according to how and when they went into distortion. They were then grouped together with tubes that distorted in a similar way and then grouped together with tubes that also had a fairly close static match for biasing purposes. Was any of this true? Or was it all "snake oil"?
I've heard people say that their "match" was not as good as tubes from other vendors. This would be true for sure if the static match was being checked yet they were actually matched in some other way....