Edcor RMX1 1:37

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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
EDCOR's royal blue bobbin with black finishing tape.

This unit has an outer copper shielding around winding and core to help eliminate outside interference.

This unit has color coded 4", UL1007, 24 ga. lead wire. mounting. For footprint and suggested hole and pad size please see the dimensional drawing.

This unit is open frame. It is designed to be mounted in a can or microphone tube.

Diagram https://www.edcorusa.com/content/images/thumbs/0004299.jpeg15000-EI025-025-R01.pdfa


Turns Ratio 1:37
Primary (input) DCR <0.4 Ohms
Primary (input) Inductance <1H
Secondary (output) DCR 87 Ohms
Secondary (output) Inductance 6H
Frequency Response 50~20K Hz., <1dBu
THD+Noise <0.02% @ 1K Hz.
Shielding Tin-plated copper EMI shielding tape
Bobbin Material Nylon 6/6 GF-30
Flamability Rating Class B 130°C
Core Material Super Q 80 Nickel (80%)
Secondary Insulation (transformer) Clear air dry polyester varnish
Termination UL1007, 24 ga. lead wire
Weight 0.08 lbs.
Compliance RoHS & REACH