Wanted a new replacement tube for my 15 watt Kustom guitar amp. Well I find out few possibilities for that but in the meantime trying to change somewhat the original amp tone. Reading a lot of rewiews, deceided to buy two TAD RT271 tubes wich indeed change my overall guitar tone adding a nice tight bass, so now I can play even the bassguitar thru amp.
Since my old stock chinese EL84 was replace with a new pair of Sovtech and I was not so happy (they add somewhat brightness), now find out a good substitute for a nice tight tone.