Fidelity Research FRT-3

Step-up transformer for MC using toroidal core. By developing and adopting a ring-shaped toroidal core, nonlinear distortion and noise components caused by hysteresis curve and Barkhausen effect are eliminated.

Type Booster transformer Primary impedance 10 ohm, 30 ohm, PASS (Switching) Secondary impedance 12k ohm Load impedance 47k ohm - 50k ohm Boost ratio 10 ohm : 31 dB (36 times) 30 ohm : 26 dB (21 times) Frequency band 20 Hz to 30 kHz Distortion factor Measurement error occurs until output 2 vrms and judgment is not made. External dimensions 64 mm wide x 64 mm high x 105 mm deep