For use in condenser microhones with valve of solid state amplifier. Replacement transformer for for Neumann U47 or U87 microphones
| RATIO | 9:1 |
| PRIMARY INDUCTANCE | 220 H approx |
| DCR (primary) | 980 Ohms |
| DCR (secondary) | 17 Ohms |
| FREQUENCY RESPONSE 2000 Ohm source 200 Ohm load. (-3 dB points) | 4 Hz to 90 KHz |

