A step-up transformer from DAC Denshi Dou, a long-established store in Osaka. It uses the US TRIAD A-10J, which is said to be “equivalent to Western,” and it is a powerful sound character full of vintage feel. It's a bit of a narrow range, but it's perfect for old sound records. The exterior is dull (Murakoshi Yoichi)
Maintenance information: 2022.11.15 sound output confirmed
Accessories: none
Main specifications: primary side 150 ohm/600 Ω, secondary side 60 KΩ W100 × H85 × D75 mm 428 g