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Your cart is empty. HiLetgo 5pcs EI14/EI-14 Audio Coupling Isolation Transformer Audio Transformer 600:600 1:1
Specifications
Color: Red
Model: EI14
Material: Nickel alloy
AC impedance : EI14 600 : 600 Ohm
Item : Audio transformer
inductance : 290mH (±20%)
DC resistance : 135(±%)
Windability : Double-wire winding
Quality &wire diameter : QA-1 0.06MM
Primary coils : 800 turns
secondary coils : 800 turns
Alternating-current impedance value : 600
Features
Selection of quality, long life
EMC, EMI, high pressure, stable performance
High efficiency transformer
Package included:
5pcs EI14/EI-14 Audio Coupling Isolation Transformer Audio Transformer
Dean Hedin
Reviewed in the United States on September 15, 2023
I needed one of these to make a digital interface to a ham radio. Quality is good.Shipped very quickly.
EDWARD B.
Reviewed in the United States on September 4, 2022
Some comments suggested a difference between the red ones and yellow ones; mine came yellow. One description said they are 290 mH, so I was going to use two, but the ones I got measure 500-600 mH on each winding, and so are just right for my current purpose, which is for the filter in a DIY wah-wah pedal. All of them seem fine, but I have neither stressed them, nor used them as isolation transformers. They are small (1/2 inch cube) and light (5g or 0.2 oz).
Richard R. Pardi
Reviewed in the United States on September 13, 2022
Not all intact
Robert Trompeter
Reviewed in the United States on March 22, 2022
these are good if you get red but the yellows are not and I had to resend back for the correct pic ones , just a fact
Tech Doc
Reviewed in the United States on February 27, 2022
For my purpose works well for audio and intercom dry coupling. Very similar to all others, seem to have good response doesn't saturate at line level. Doesn't block dc well and will start to cook like some others. I put 10uf @50 VDC (NP) Non-Polarized caps on both sides to keep phantom and ICM power out without much low-end loss.I make up on inexpensive pc board put in small plastic project 2"x2"x1" project box with XLR Male / Female respective wired with audio cable through an 1/8" hole for in and out. Could be 1/4" TRS also. I do not couple chassis ground in my case.I use whatever is over in my shop to build like recycled XLR connectors. Most times it is left at venue or if it gets broken by moving equipment cases. If I used my standard fare, I would not want to leave, it that be a lot of money.
Charles Reppert
Reviewed in the United States on December 17, 2022
I'm making some audio interfaces and needed the isolation from ground loop. These did the trick 100%.Will probably be ordering some more.
HyTech
Reviewed in the United States on April 1, 2022
The transformers are not the ones pictured they are yellow but work the same
BK
Reviewed in the United States on August 14, 2020
I used two of these on a critical circuit and they performed great. No ringing or other issues.
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