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Thread: ESL Headphone

  1. #1
    rendoman's Avatar
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    ESL Headphone

    Hi all!
    I'm trying to build a couple of electrostatic panels for headphone.
    I'm reading a couple of books and opinions in internet about the right "rule" about size, polarization and materials.

    I'm building frames for stators and diaphragm from 10mm PVC bar.
    I'm not sure about type and thickness of diaphragm, normal film for food should be polietilene or pvc about 12 micron. Someone in audio forum tried 1 micron film with very short distance from dia to stators.

    I tried first frame in thin lexan, but it wasn't good, too flexible!

    Here a picture of Esl operation



    ESL Headphone-esl_animation.jpg

    Here the good frames in PVC

    ESL Headphone-dsc03043_1600x1200.jpg ESL Headphone-dsc03045_1600x1200.jpg ESL Headphone-dsc03046_1600x1200.jpg

    ESL Headphone-dsc03047_1600x1200.jpg ESL Headphone-dsc03048_1600x1200.jpg ESL Headphone-dsc03049_1600x1200.jpg

    Here the bad old frame, I made a wrong choice with the not perfect wooden plank


    ESL Headphone-dsc03036_1600x1200.jpg ESL Headphone-dsc03038_1600x1200.jpg

    ESL Headphone-dsc03040_1600x1200.jpg ESL Headphone-dsc03041_1600x1200.jpg

  2. The Following 2 Users Say Thank You to rendoman For This Useful Post:

    Seedtick (11-22-2017), Tuomas (11-22-2017)

  3. #2
    Tuomas's Avatar
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    That's interesting project!

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    rendoman (11-22-2017)

  5. #3
    rendoman's Avatar
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    Thank you!!

    Test frame for Esl is almost finished. I modify a little the spacers, now they are 1mm. Thinking afterwards, I would not have made the holes near diaphragm, but you always think about it later.... Not a perfect job, but still usable.
    It's time to model 316 stators and connections!

    ESL Headphone-dsc03056_1600x1200.jpg

    ESL Headphone-dsc03050_1600x1200.jpg ESL Headphone-dsc03051_1600x1200.jpg

    ESL Headphone-dsc03052_1600x1200.jpg ESL Headphone-dsc03054_1600x1200.jpg


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    Last edited by rendoman; 11-22-2017 at 12:56 PM. Reason: Position of pictures

  6. The Following 3 Users Say Thank You to rendoman For This Useful Post:

    Seedtick (11-22-2017), Sleykin (11-23-2017), Tuomas (11-24-2017)

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