EDCOR Electronics Corporation
XSE25-3K - 25W, 3K Ohms single ended tube output transformer.
Secondary (output) Impedance
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Design
Mathematically designed to produce exact plate and screen voltages. These transformers are precision gapped to adjust for unbalanced DC current.
Primary (Input)
The input is designed for a 3K Ohms impedance source.
Screen/Grid Tap
This unit has a 40% screen/grid tap.
Secondary (Output)
The output impedance depends on model.
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 M6 line grain oriented steel 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
The terminations are 0.187" (3/16") spade terminals. These terminals can be connected with 0.187" (3/16") quick disconnects or can be soldered to.
Mounting
This unit comes with steel zinc plated channel/frame for mounting with the use of two screws. See dimensional drawing.
Specifications
| Wattage | 25W |
| Maximum Current | 240mA |
| Primary (input) Impedance | 3K Ω |
| Screen/Grid Tap | 40% |
| Secondary (output) Impedance | Depends on model. |
| Winding Configuration | Interleave Winding |
| Frequency Response | 70~18K Hz., <1dBu |
| THD+Noise | <0.1% @ 1K Hz. |
| Insertion Loss | <0.5 dB |
| Bobbin Material | Nylon 6/6 GF-30 |
| Flammability Rating | Class HB |
| Coil Finish Wrapping | Polyester Film Electrical Insulating Tape |
| Core Size |
EI100 (1" x 1.25") |
| Core Material | M-6 29 ga. grain oriented lamination steel |
| Secondary Insulation | Clear air dry polyester varnish |
| Termination | 0.187" (3/16") quick disconnects spade terminals |
| Mounting | Zinc plated channel/frame |
| Mounting Orientation | Horizontal |
| Weight | 2.6 lbs. |
| Compliance | RoHS & REACH |
| Dimensional Drawing | 15000-EI100-125-18 |