Groove Tubes EL34 M Penkitetty Luokitus 8= melko puhdas-soundinen  pääteputki, parihinta.

GT-EL34-M Mullard
DuetReproduction of a classic EL-34 XF2 Dual Getter tube. This is a classic.
This  pentode is standard issue on many UK amps and has great durability, although as with most GT power tubes the break up is a bit harsh and they lack high end as compared to the true European models.