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Old 24th September 2009, 03:57 PM   #201
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Hi Matt,

Take your time. I'm sure you will figure it out.

Wachara C.
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Old 24th September 2009, 08:15 PM   #202
vaughn is offline vaughn  United States
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Wachara, if you have one would you send a high resolution image of the underside of your amp to my email. I think it would answer a lot of the questions I have.

Thanks,
Matt
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Old 24th September 2009, 10:18 PM   #203
vaughn is offline vaughn  United States
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I've got it making sound! It distorts fairly quickly when I turn up the volume and I've got a buzzing on one side that I will have to figure out. It seems like my tubes are fairly noisy(I pulled them out of my box of old tubes). All in all I am encouraged though! I found several errors in my wiring that are too embarrassing to even mention
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Old 25th September 2009, 02:20 AM   #204
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Hi Matt,

You are on the right path. Keep going!

It will take a while before the headphones are fully charged up. Depending on the humidity, it could take from minutes to hours. But when they are ready, you don't need to turn on your volume all the way up. I've also found that the distortion started to come in when you turned the volume to around 1 o'clock and above. However, I never listen to the music that loud.

By the way, were you able to find the same connection jacks as Koss's?

Wachara C.
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Old 25th September 2009, 02:38 AM   #205
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Hi Matt,

I just looked at your pictures again, and I saw the diaphragms' color was so white. Did you coat a lot of glue on them? I'm thinking that it could be too thick coating. After coating, the diaphragm should still be transparent with only slightly change in color. Maybe you need to add more water in the glue to thin it down more. When you apply, try to wipe it dry with a sponge. Thick coating is no good.

Wachara C.

Last edited by chinsettawong; 25th September 2009 at 02:41 AM.
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Old 25th September 2009, 05:21 PM   #206
vaughn is offline vaughn  United States
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Thanks Wachara,

I am going to install new diaphragms today and try a thinner coating. I mixed the coating as you suggested but I had a little difficulty getting it to adhere to the diaphragm originally, it kept wanting to bead or pool up. I had to go back and clean the diaphragm with denatured alcohol, which seemed to help.

I found the connectors used for Stax headphones here,

the jack...

http://www.alliedelec.com/Search/Pro...12&DESC=78-S6S

and the plug...

http://www.alliedelec.com/Search/Pro...&DESC=86-71-6S

and here is a link to the pinout for a Stax jack/plug...

http://wiki.faust3d.com/wiki//index....Connectors.jpg
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Old 30th September 2009, 12:46 PM   #207
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็Thanks for the link, Matt.

How is your progress going? What diaphragm thickness do you use?

Wachara C.
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Old 30th September 2009, 12:47 PM   #208
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Thanks for the links, Matt.

How is your progress going? What diaphragm thickness do you use?

Wachara C.
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Old 4th October 2009, 08:47 PM   #209
vaughn is offline vaughn  United States
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Hi Wachara,

Well I put new diaphragms on and the sound was immediately better, even before they had energized properly. I think you were right, my coating was too thick on the first set. This has certainly giving me the courage to experiment further with electrostatic headphones! Oh btw, I used the super ultra film or whatever it is is called from indoor specialties. Difficult to work with(at least for my big fingers) but very detailed sound
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Old 5th October 2009, 03:05 AM   #210
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Hi Matt,

I'm glad that you like the sound. I also use super ultra film. If you can, leave the bias diaphragm circuit on all the time even when you are not using it. You will find that the sound improves more and more as time passes.

Please show me more of your photos.

Wachara C.
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