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1. Designed to transform voltage or change the impedance of a load.
2. The primary and secondary windings are closely coupled.
3. Sufficient passband, the original winding inductance is large, the leakage inductance is small, the influence of hysteresis loss can be reduced.
4. Stable performance, high reliability, convenient to use.
5. Used as components for circuits such as voltage amplification and power output in radio communication, broadcast television, and automatic control.
Specification:
Item Type: Audio Transformer
Impedance Ratio: 1300 : 8
Power Phase Number: Single Phase
Proof Way: Open
Cooling Method: Oil-Immersed Air-Cooled
Frequency Characteristics: Medium Frequency
Winding Form: Self Coupling
Iron Core Form: Amorphous Alloy
Iron Core Shape: EI Type
Structure: Vertical
Package List:
10 x Audio Transformer
Ted
Reviewed in Canada on September 23, 2024
Two of the transistors arrived with plastic parts broken off
Juanjo
Reviewed in the United States on March 24, 2024
Todo según lo anunciado. Volvería a comprar
Ravenworks
Reviewed in Canada on March 10, 2024
Could have come with a pinout or what side is primary
michael gensel
Reviewed in the United States on August 22, 2023
These transformers are not what claimed, the impedance isn't even close to what is claimed
Zenbum
Reviewed in the United States on July 12, 2023
I purchased these knowing they almost certainly couldn't be as high as 1300:8, but hoped they might at least be 500:8. They weren't. Not even close.From 200 Hz to 20 kHz the voltage ratio is very consistently 5.1:1, which yields an impedance ratio of about 210:8.Below 200 Hz, the ratio drops off to about 4:1 at 20 Hz, which is an impedance ratio of 128:8.
user364
Reviewed in the United States on June 17, 2023
I do not know the turns ratio of these transformers, but they function well with crystal radios as a good impedance match. They take the radio impedance and match it to the earbud impedance! The only negative was that two were damaged.
Pete Zimmer
Reviewed in the United States on December 2, 2023
Works fine lasts a long time.
JohnnyX86
Reviewed in the United States on February 14, 2021
This transformer isn’t quite as advertised. I swept it with a sig gen across the audio range. It does seem to have a good passband as claimed. From the observed voltage ratio and from measuring the primary and secondary inductances, the turns ratio appears to be about 5 not 13. My methodology could be off though. I wish this part had a data sheet.
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