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UM-20Japan

Manufacture:ONLIFE
Price: JPY 407,273(pair)Sold Out
23-39127-09291-00
Japan 1974 made
Shop: Osu shop
Arrival: 2023-05-18 19:49:51
Maintained! A mono parapsup pull amplifier that luxuriously uses 4 2A3s per channel. You can enjoy the precise and powerful sound of direct thermal triodes with high output. It goes great with speakers that use domestic horn drivers of the same age, such as YL Sound. The power cords are different on the left and right (Takasaki Atsushi) Maintenance information: 2023.5.17 Maintained (vacuum tube socket pin defect improvement treatment, AC cord coating crack improvement treatment, internal and external ham balance readjustment, RCA jack and vacuum tube socket recasement repair, operation check (rated output 25W SP: measured at 8 ohms)) 2020.2.8 maintained (2 ham balance volume replacement, and 2 additional resistors, 8 replacement output tubes, 1 replacement input switching knob replacement output Check (20W output measurement when connected to 8Ω) Accessories: none Main specifications: mono power amplifier 2A3 para-push-pull output 20W, vacuum tube used (for one channel), 2A3 x 4, ECC82 (12AU7) x 2 W360 x H192 x D200 mm 16.9 kg/unit (actual measurement)
　　
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