6H1n-EB electron tube . parallel-tube power amplifier.For Soviet hot stamping 6H1n-EB electron tube replace 6N1 /ECC85/6AQ8 valve.The Soviet Union 6H1n-EB is a long-life and highly reliable tube with a warm and sweet sound. Super poisonous sound, new pairing in the same batch.The sound quality is better than 6N1. It can shape low frequency. Super toxic acoustic electron tube.Package :2pcs .