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Filter Choke
- Value: 7.0H
- DC mA: 75
- DC RES: 240
By Electronix Express
Economical:
"Open bracket" channel mount filter chokes are perfect for high voltage power supply filtering
Tolerance of 15% on both inductance & resistance.
- Every unit is Hipot tested (100%) at 1,500 VAC
- 5" long leads.
- Measures 2.4" x 1.2" x 1.3". Mounting holes are about 2" apart.
Caroline C.
Reviewed in the United States on February 9, 2025
Teadmill needs at least 1 mH 20amp choke
Mountain Mama
Reviewed in the United States on February 10, 2025
Arrived carefully packaged & works well. Good value. Only an electronic nerd fooling with vacuum tubes (like my spouse) will understand what this is for. But he's very happy with it.
Jennings Sturgeon
Reviewed in the United States on September 30, 2024
None
Jim
Reviewed in the United States on November 19, 2024
I ordered this filter choke to fix a filtering problem in an antique radio I was working on. It worked great and brought the radio back to life again. The price was well within reason and the product shipped in a nominal amount of time. I will order products from this company, again. Thanks.
James Keller
Reviewed in the United States on January 10, 2024
sent it back got my $ back
robert e lutz jr
Reviewed in the United States on May 3, 2023
good item .... excellent transaction
Ronald G. Villata
Reviewed in the United States on November 20, 2022
I used this choke for a home brewed SE stereo amplifier.. work perfect, no hums .👍
Michael H
Reviewed in the United States on October 22, 2022
I am doing experiments with alternating current to teach my grandchildren about the phase shift in an inductor and capacitor circuit.In my inventory, I had inductors with small milliHenry values, where it was possible to work only with frequencies in the range of kiloHertz. Therefore, I ordered a choke with a specified value of 7 Henry intended for vacuum tube circuits.For my experiment, I connected a choke in series with a 1k2 resistor from a 14 VAC transformer. I have shown the voltage from the transformer in Channel 1, the voltage drop across the resistor 1k2 in Channel 2 (representing the current across the choke). A better sinus wave shape was achieved with a function generator.Similarly, experiments can be done with a capacitor. Since the conventional capacitor is close to ideal, there is no problem to achieve a phase shift close to 90 degrees.Obviously, to measure the lagging current on the inductor you use the resistor connected to the oscilloscope ground, and to measure the lagging voltage on the capacitor, the capacitor is connected to the oscilloscope ground.Grandchildren love the experiments.
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