LITTLE DOT MKII TUBE AMP USSR NOS UPGRADE VALVES 6J1 6J1P-EV (6AK5) & RINGS UK. 6J1P-EV Voskhod, USSR c.1970/80s Life expectancy: 5000hrs. A very good sound Upgrade! Expect improved tighter and deeper bass, open midrange and detailed treble with better timing and overall cohesion.
