Has anybody made an ELS headphone? - Page 21

chinsettawong · 24th September 2009, 03:57 PM

Hi Matt,

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

Wachara C.

vaughn · 24th September 2009, 08:15 PM

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

vaughn · 24th September 2009, 10:18 PM

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

chinsettawong · 25th September 2009, 02:20 AM

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.

chinsettawong · 02:41 AM

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.

vaughn · 25th September 2009, 05:21 PM

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

chinsettawong · 30th September 2009, 12:46 PM

็Thanks for the link, Matt.

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

Wachara C.

chinsettawong · 30th September 2009, 12:47 PM

Thanks for the links, Matt.

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

Wachara C.

vaughn · 4th October 2009, 08:47 PM

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

chinsettawong · 5th October 2009, 03:05 AM

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.

25th September 2009, 02:38 AM	#205
chinsettawong diyAudio Member Join Date: Jun 2006	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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24th September 2009, 03:57 PM	#201
chinsettawong diyAudio Member Join Date: Jun 2006	Hi Matt, Take your time. I'm sure you will figure it out. Wachara C.

24th September 2009, 08:15 PM	#202
vaughn diyAudio Member Join Date: Feb 2008	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

24th September 2009, 10:18 PM	#203
vaughn diyAudio Member Join Date: Feb 2008	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

25th September 2009, 02:20 AM	#204
chinsettawong diyAudio Member Join Date: Jun 2006	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.

25th September 2009, 05:21 PM	#206
vaughn diyAudio Member Join Date: Feb 2008	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

30th September 2009, 12:46 PM	#207
chinsettawong diyAudio Member Join Date: Jun 2006	็Thanks for the link, Matt. How is your progress going? What diaphragm thickness do you use? Wachara C.

30th September 2009, 12:47 PM	#208
chinsettawong diyAudio Member Join Date: Jun 2006	Thanks for the links, Matt. How is your progress going? What diaphragm thickness do you use? Wachara C.

4th October 2009, 08:47 PM	#209
vaughn diyAudio Member Join Date: Feb 2008	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

5th October 2009, 03:05 AM	#210
chinsettawong diyAudio Member Join Date: Jun 2006	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.