Maintained! It is a 3-digit serial model 7 with impressive brown knobs. You can enjoy a glossy mid to high range sound with a high sense of transparency and a thick, exquisite balance. It's a model that has been over half a century since it went on sale for analog fans, but it's still one they admire. The lustrous, indescribable tone is an appeal that cannot be enjoyed on modern devices. Serial 7-10926 (Murakoshi Yoichi)
Maintenance information: 2024.7.24 maintenance (main volume disassembly, cleaning repair, oil capacitor replacement with BlackBeauty, addition of a diode to protect high-pressure selenium, 1W resistor, 200μF electrolytic capacitor replacement, vacuum tube socket and RCA jack caulking repair. Operation check with AC 100 to 117 V)
Accessories: instruction manual (copy)
Main specifications: tubular control amplifier, vacuum tube, ECC83/12AX7, 3-stage NF equalizer, NF type step switching control, W453 x H185 x D267 mm, 7.5 kg