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.
aadrianperezz

Showing 2 responses by roberjerman

The JJ''s are a good value for the price. Any of their ECC83's (12AX7's) will do just fine! No need to worry about so-called "premium" ones! I can recommend putting a 5751 in V1. This is a low-noise version. And as the first "gain" tube it has the most sonic benefits in V1.
I have a Laney PT30MV Series II head. Same tubes! I prefer vintage US, British and German tubes: GE, Sylvania, Mullard, Telefunken. These of course cost more usually than present-day ones. But have much longer life, even bought used! And superior sound quality!