Fidelity-Research step-up transformer. A multifunctional boost transformer that can be switched from 3 ohms to 100 ohms, has 3 inputs and PASS, and can also be used as a selector for multiple record players. Each gain is equipped with an independent toroidal transformer. The exterior is dull, and there are small scratches (Oikawa Tetsuji)
Maintenance information: 2024.4.8 operation confirmed
Accessories: none
Main specifications: boost transformer core format/toroidal core input impedance 3Ω, 10Ω, 30Ω, 100Ω, PASS (switching) load impedance 47 kΩ to 57 kΩ frequency characteristics 20 Hz to 30000 Hz W170 × H60 × D180 mm 1.2 kg