Feature = Hard and Soft in the Hi-Fi Era /Watch Software/Discussion; Tone Arm Research/5ch Divider/Measurement and Audition of Vacuum Tube Power Amplifier/We293A PP/We300B pp/ EL34pp/VT52pp/VT104 10E,215/Listening Room/Published Schematic: Footer Man Issued by NCP-1/OTL-1/S58.11.1