Maintenance completed! 66 deteriorated parts, including the condenser, have been replaced! Furthermore, the speaker terminals have been replaced to make it easier to use. This is a luxurious mono power amplifier equipped with 8045G. Compared to the A series and MQ series, it has an overwhelmingly rich luster and just the right amount of delicacy. The driving power that pushes forward firmly and the glossy sound quality is attractive. Serial 806169/806192 (Yamato Yuki)
Maintenance Information: 2025.12.11 Maintained
(12 vacuum tube sockets, 18 capacitors, 2 resistors, RCA terminals, semi-fixed VR, 4 spark killers, SP terminals, RCA terminals, 16 diodes, 4 micro SWs, fuse, power cord replacement. The board was re-soldered, and the input gain VR disassembled and cleaned. Load test (at 1kHz, 8Ω load: 60W for both). Input/output waveform confirmation, sound output check performed) (SW/VOL disassembly contacts polished and oxidized/vulcanized grease applied. Input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 60 W+60 W, OK)
Accessories: instruction manual copy power cable x 2
Main specifications: used vacuum tubes, 8045G/ 2, 6240G/ 2, 12AU7/1, output 60W, W370 x H170 x D240 mm, 16 kg