ITEM NAME:2pcs 6J1P 6AK5 Valve Vacuum Tube For PreAmplifier Board Headphone Amplifier B Hs.6J1P-EV equivalent EF95, 6F32, 6AK5. The first grid is wound with wire made of an alloy of gold and platinum. Grid lifting is copper. HF pentode tube 6J1P-EV. 2 x 6J1P-EV Vacuum Tube Module. The tube gives a very clean, warm and natural sound.