GT-EL-34M XF2 Dual Getter - Matched Duet Reproduction of a classic EL-34 XF2 Pair Getter tube. The GT-EL34M was shown at NAMM. This tube is based upon a tube which is considered something of an icon to EL34 users in both the audio world and guitar amp world. There were a number of variants of the original tube and GT chose the classic XF2 dual getter version to reproduce. This tube is now available in matched quads and duets. Country of origin: ChinaCountry of origin: China