Thank you very much for clarifying roberjerman. This is my first tube amp and I dont want to mess up. Could you explain me the meaning of 005571, 005550 etc? Because I literally search on the internet and didn’t find anything about “tubes 005571” , I would like to know what that series stands for concerning tubes. Or if there any link on the internet that you can provide where it does give a good explanation?
Laney ironheart 30 combo amp tube replacement
Hello,
i have a Laney IRT-30 112 tube combo amp and I want to replace the tubes. In the manual states the following concerning the tubes models to be replaced (the V is the position of the tubes):
V1- ECC83 HiGrade 005571
V2,3- ECC83 Selected 005550
V4,5- 6L6GC-STR (Matched Pair) 007853
My doubt is that I’ve been trying to figure out the difference between the terms higrade and selected of the ECC83. Because for example, in the brand JJ (which are the ones i want to purchase) theres only a ECC83S model, and theres no such thing as “ECC83 HiGrade” an “ECC83 Selected” or any other brand. Can someone has any idea of what this means? I want the JJ tubes, but I dont want to replace them mistakenly.
i have a Laney IRT-30 112 tube combo amp and I want to replace the tubes. In the manual states the following concerning the tubes models to be replaced (the V is the position of the tubes):
V1- ECC83 HiGrade 005571
V2,3- ECC83 Selected 005550
V4,5- 6L6GC-STR (Matched Pair) 007853
My doubt is that I’ve been trying to figure out the difference between the terms higrade and selected of the ECC83. Because for example, in the brand JJ (which are the ones i want to purchase) theres only a ECC83S model, and theres no such thing as “ECC83 HiGrade” an “ECC83 Selected” or any other brand. Can someone has any idea of what this means? I want the JJ tubes, but I dont want to replace them mistakenly.
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