Maintenance has been meticulously detailed, from volume disassembly and cleaning to capacitor replacement! The capacitors and terminals were replaced, and both the sound and condition were reproduced close to that time. This is the popular A3500. I recommend it to those who want to try out vacuum tube amplifiers for the first time! Of course, the warm sound of the vacuum tube is also there, but the clean, clean sound using the EL34 push-pull is appealing. The exterior is dull over time, and there is a feeling of use (Katsutsugu Hiura)
Maintenance information: 2023.4.21 Maintained (gain VOL decomposition junction re-polishing oxidation, anti-sulfide grease application, input/output waveform confirmation, load test (1 kHz sine wave, 8 ohm load: 40W+40W, OK), load running test (5H), sound output test (1H))
2023.3.24 Maintained (oil condenser replacement, semi-fixed VR replacement, volume VR terminal replacement, re-adjustment)
Accessories: copy of instruction manual
Main specifications: 40W+40W (8Ω) vacuum tube 6CA7×4/6AQ8×3 W465×H168×D206mm 16kg