Imported Z9 iron core wound 10K, 12K, 16K: 4 ohm 8 ohm push-pull output transformer, EI41 iron core, stack thickness of 14mm and 20mm, power 3W and 5W.
Choose two transformers whose parameters are similar to each other. The inductance and copper resistance parameters are posted on the transformer. The transformer is soldered on the PCB board, and there is a small hole in the middle of the board, which is convenient to separate the two pieces.
The transformer has a stacking thickness of 14mm and a stacking thickness of 20mm. The warranty is one year.
Other specifications of impedance output transformers can also be customized as required, such as headphone output transformers, pre-stage output transformers, single-ended balanced signal output transformers, etc.
Z9 material iron core, the large material iron core is removed from the imported large transformer, and then cut and punched into various small specifications and sizes, annealing process, performance is better than the new sheet material.
The thickness of Z9 silicon steel sheet is 0.24mm, and the magnetic induction intensity of Z9 is higher than that of Z11 and the inductance is larger than that of Z11. The thickness of the Z11 silicon steel sheet of 0.35mm is very good. In the same wire package, the inductance of the Z9 chip is more than 30-40% larger than that of the Z11 chip. The thinner the silicon steel sheet iron chip, the smaller the eddy current generated, and the higher the efficiency. Under the same frequency, it can reduce the number of turns of the transformer or the cross-sectional area of the core, and the reduction of the cross-section of the transformer core will help reduce the leakage inductance distributed capacitance of the coil, which is beneficial to the extension of the high frequency band.
Push-pull output transformer features: Primary and secondary layered winding, double-group balanced push-pull input, refer to the American Maijingtu output cow winding process, the same number of turns, the same wire diameter, the same copper resistance, internal resistance Same, same voltage, same current, completely balanced symmetrical push-pull output transformer. The small iron core and the large inductance make the effect surprising.
Z9 core size EI41X14 and EI41X20 two sizes, high-quality nylon skeleton, oxygen-free copper copper enameled wire. Double row 6 feet + 6 feet or 7 feet + 7 feet, matching double panel thickness 2mm, board size 93x60mm. 10 pins are soldered firmly on the circuit board.
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8K: 4 ohm 8 ohm 3W push-pull transformer parameters: stack thickness 14mm double row 6 feet + 6 feet
parameter:
Primary current: 25mA
Primary inductance: about 65H
Primary copper resistance: 376 ohms
Secondary copper resistance: 1 ohm (8 ohms)
Secondary inductance: 140mH
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8K: 4 ohm 8 ohm 5W transformer parameters: stack thickness 20mm double row 7 feet + 7 feet
Primary current: 25mA
Primary inductance: about 60H
Primary copper resistance: 402 ohm
Secondary copper resistance: 1.1 ohms (8 ohms)
Secondary inductance: 140mH
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10K: 4 ohm 8 ohm 5W push-pull transformer parameters: stack thickness 20mm double row 7 feet + 7 feet
Primary current: 28mA
Primary inductance: about 75-95H
Primary copper resistance: 399 ohms
Secondary copper resistance: 1.1 ohms (8 ohms)
Secondary inductance: 20-25mH
Frequency response: 35Hz-62KHz -3DB
External dimensions of transformer: 42x34x36mm
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10K: 150 ohms +1508 ohms Push-pull transformer parameters: stack thickness 20mm double row 7 feet + 7 feet
Primary current: 20mA
Primary inductance: about 250H
Primary copper resistance: 1150 ohm
Secondary copper resistance: 140 ohm
Secondary inductance: 9H
External dimensions of transformer: 42x34x36mm
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12K: 4 ohm 8 ohm 5W push-pull transformer parameters: stack thickness 20mm double row 7 feet + 7 feet
Primary current: 25mA
Primary inductance: about 100H
Primary copper resistance: 468 ohm
Secondary copper resistance: 1 ohm (8 ohms)
Secondary inductance: 130mH
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16K: 4 ohm/8 ohm 5W push-pull output transformer: stack thickness 20mm double row 7 feet + 7 feet
Primary current: 25mA
Primary inductance: about 160H
Primary copper resistance: 510 ohm
Secondary copper resistance: 1.3 ohms (8 ohms)
Secondary inductance: 210mH
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16K: 8 ohm 32 ohm 3W push-pull transformer parameters: stack thickness 14mm double row 6 feet + 6 feet
Primary current: 25mA
Primary inductance: about 76-96H
Primary copper resistance: 725 ohms
Secondary copper resistance: 2.1 ohms (32 ohms)
Secondary inductance: 63-98mH
Transformer outer dimensions: 42x34x30mm
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16K: 150 ohm 600 ohm 3W push-pull transformer parameters: stack thickness 14mm double row 6 feet + 6 feet
Primary current: 25mA
Primary inductance: about 77-106H
Primary copper resistance: 958 ohms
Secondary copper resistance: 29.4 ohms (600 ohms)
Secondary inductance: 3.5-5.1H
External dimensions of the transformer: 42x34x30mm,
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