For sale, as the title suggests, Elrog 300B valves. They have now become a must, perhaps the best 300b on the market together with the Tatatsuki. They are 2 years old but just under 300 hours of listening as I have 6 amplifiers and therefore often alternate listening . They are in like new condition, current selling price around 1600 euros, I am asking for 1000 sent by express courier. They were mounted on 2 Megahertz 300B monos but for the type of music I listen to I prefer more characterized tubes compared to the Elrogs which they have a frightening correctness and linearity of tone. I offer free shipping throughout Europe