Genalex GZ34 U77
The newest addition to the Genalex Gold Lion range.
The Genalex Gold Lion GZ34 / U77 is smooth, refined, and balanced for the very best high-end audio sound. This GZ34 (5AR4) tube is robust and works great in many different guitar amps such as Vox and Fender amps.
GZ34 and U77 is the European name for the 5AR4 and is compatible with any circuit using a 5AR4 tube.