EDCOR Electronics Corporation
RMX1 Series - 1:37 ratio ribbon microphone matching transformer.
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Design
Mathematical and design analysis of the highly successful 1953 RCA ribbon microphone transformer together with new materials offer a new standard.
Magnet Wire
All units are wound with the finest virgin copper magnet wire. All windings use heavy insulated wire to provide excellent manufacturing yield, lower customer cost and superior life.
The Core
EDCOR uses the finest Super "Q" 80% Nickel cores. Each unit is hand stacked to assure at least 92% stack.
The Bobbin
Injection molded Nylon 6/6 with the addition of 30%-35% glass fibers. The addition of glass fibers allows a higher heat deflection temperature and it brings the material to a class HB UL temperature classification.
Termination/Mounting
This unit has color coded 4", UL1007, 24 ga. lead wire. For footprint and suggested hole and pad size please see the dimensional drawing.
Specifications
| Turns Ratio |
1:37 |
| Primary (input) DCR | <4 Ohms |
| Primary (input) Inductance | <1H |
| Secondary (output) DCR | 87 Ohms |
| Secondary (output) Inductance | 6H |
| Winding Configuration | Interleave Winding |
| Frequency Response | 50~20K Hz., <1dBu |
| THD+Noise | <0.05% @ 1K Hz. |
| Frequency Response/THD+Noise Plot | RMX1 |
| Bobbin Material | Nylon 6/6 GF-30 |
| Flammability Rating | Class HB |
| Coil Finish Wrapping | Polyester Film Electrical Insulating Tape |
| Core Size |
EI25 (0.25" x 0.25") |
| Core Material | Super "Q" 80% Nickel |
| Shielding | Tin-plated copper EMI shielding tape |
| Secondary Insulation | Clear air dry polyester varnish |
| Termination | UL1007, 24 ga. 4" lead wire |
| Weight | 0.08 lbs. |
| Compliance | RoHS & REACH |
| Dimensional Drawing | 15000-EI025-025-R01 |