CXPP25-3.4K - 25W, 3.4K Ohms push-pull tube output transformer.
CXPP25-3.4K - 25W, 3.4K Ohms push-pull tube output transformer.
CXPP25-3.4K - 25W, 3.4K Ohms push-pull tube output transformer.

EDCOR Electronics Corporation

CXPP25-3.4K - 25W, 3.4K Ohms push-pull tube output transformer.

Sale price$111.41 USD

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SKU: CXPP25-4-3.4K

Secondary (output) Impedance:

Secondary (output) Impedance

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The CXPP series was designed as a high quality output transformers push-pull tube amplifiers.

Primary (Input)
The input is designed for a 3.4K Ohms impedance source.

Screen/Grid Tap
This unit has a 40% screen/grid tap.

Secondary (Output)
The output impedance is designed for speakers.

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.

The terminations are UL1015 20 ga. color coded lead wire around 15 inches (38cm) long. 

This unit comes with steel end bells for mounting with the use of four screws. See dimensional drawing.


Wattage 25W
Primary (input) Impedance 3.4K Ω
Screen/Grid Tap 40%
Secondary (output) Impedance Depends on model.
Winding Configuration Interleave Winding
Frequency Response 20~20K Hz., <1dBu
THD+Noise <0.1% @ 1K Hz.
Insertion Loss <1 dB
Bobbin Material Nylon 6/6 GF-30
Flammability Rating Class HB
Coil Finish Wrapping Polyester Film Electrical Insulating Tape
Core Size
EI125 (1.25" x 1.25")
Core Material M-6 29 ga. grain oriented lamination steel
Secondary Insulation Clear air dry polyester varnish
Termination 15" (38cm) UL1015, 20 ga. lead wire
Mounting Steel end bell covers
Mounting Orientation Vertical
Weight 4.5 lbs.
Compliance RoHS & REACH
Dimensional Drawing 15000-EI125-125-0X