※Shipping service. Radio Technology June issue separate volume, “Famous Machine Technology” series/special feature = talks about the characteristics of 15 famous vacuum tube power amplifier models and the genealogy/famous machines of vacuum tube power amplifier circuits (Tomita Yoshikazu, Yamanaka Keizo, Ishii Shinichiro, Takahashi Saburo) and others/Showa 576/5. Since the photograph is a sample, the actual item may be broken or there may be markings etc.