Maintained! The condenser was replaced with an oil condenser, and the sound loss and stretch were greatly improved. The warm, glossy sound goes well with stringed instruments and creates a vivid sound. The exterior has a feeling of use, such as dullness and small scratches. Serial F0800283 (Hiroki Aso)
Maintenance information: 2023.7.23 Maintained (vacuum tube socket block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, semi-fixed VR fuse holder replacement load test (8Ω load, 1kHz, 25W+25W), input/output waveform confirmation, sound output check, implementation, gain VOL, NFB switching, SW disassembly, contact polishing, repolishing, oxidation sulfide prevention grease, input/output waveform confirmation, distortion adjustment load test (1 kHz (25W+25W at 8 ohm sine wave load) Sound output test)
Accessories: copy of instruction manual
Main specifications: 50CA10 push-pull output 30W+30W W410 × H183 × H160 mm 13.8 kg