Has anybody made an ELS headphone? - Page 22 - diyAudio
Go Back   Home > Forums > Amplifiers > Headphone Systems

Headphone Systems Everything to do with Headphones

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th October 2009, 03:31 PM   #211
diyAudio Member
 
Join Date: Oct 2009
Baader AstroSolar Safety Film
  Reply With Quote
Old 27th October 2009, 04:07 AM   #212
diyAudio Member
 
chinsettawong's Avatar
 
Join Date: Jun 2006
Hi Jurek,

What is it that you are trying to show? The link is a bad one.

Wachara C.
  Reply With Quote
Old 17th November 2009, 03:36 PM   #213
diyAudio Member
 
chinsettawong's Avatar
 
Join Date: Jun 2006
Hi Matt, Arend-Jan, Calvin,

How is your progress on the headphone and amp? It's been a while, and I feel that I should start to give you some pressure.

Wachara C.
  Reply With Quote
Old 18th November 2009, 02:34 PM   #214
diyAudio Member
 
Join Date: May 2006
Location: Netherlands
I suppose we do need a kick in the ***

The last experiment I did was to choose the optimal resonance frequency. Do you happen to know what the resonance frequency of your headphones is?
  Reply With Quote
Old 18th November 2009, 02:46 PM   #215
diyAudio Member
 
chinsettawong's Avatar
 
Join Date: Jun 2006
Quote:
Originally Posted by arend-jan View Post
I suppose we do need a kick in the ***

The last experiment I did was to choose the optimal resonance frequency. Do you happen to know what the resonance frequency of your headphones is?
Hi Arend-Jan,

I hope you don't mind my kicking in your ***.

No, I do not know the resonance frequency. Perhaps if you can tell me how to measure it, I'll try.

Wachara C.
  Reply With Quote
Old 19th November 2009, 06:06 PM   #216
vaughn is offline vaughn  United States
diyAudio Member
 
Join Date: Feb 2008
I used my headphones initially for about 2 hours before I decided to install new diaphragms on them...

I installed new diaphragms and listened off and on for about 3 hours and then they stopped working completely. I went back and checked all of my voltages on my amp and everything checked out fine. No sound from the headphones though...

That is where I left it awhile ago. I'm not sure if I need to install another set of diaphragms or what the problem is. I plan on going back in and reworking and tidying up some of my wiring on the amp, I just haven't gotten to it.

Hopefully some of the others will have better luck and post pictures here to inspire me!
  Reply With Quote
Old 20th November 2009, 04:27 AM   #217
diyAudio Member
 
chinsettawong's Avatar
 
Join Date: Jun 2006
Hi Matt,

I'm not sure what the problem is with your headphones. Did you insulate the copper side of the stators? I don't think that you need do redo the diaphragms. You might need to make sure that the diaphragms are where they are supposed to be at. That is they should not be sucked and stuck to either side of the stators. If that is the case, you will not hear anything.

What diaphragm coating formula did you use? When you listened to them before they went bad, how did you like the sound?

Do you still need an inspiration? I can tell you this. I'm invited to take my headphones and amp to show at Bangkok Audio Visual show next week. I'll take some pictures to show you later.

Last weekend I had a group of friends coming to my house just to listen to my headphones and speakers. They liked them.

Click the image to open in full size.

Last edited by chinsettawong; 20th November 2009 at 04:30 AM.
  Reply With Quote
Old 20th November 2009, 08:42 AM   #218
Calvin is offline Calvin  Germany
diyAudio Member
 
Calvin's Avatar
 
Join Date: Nov 2004
Location: close to Basel
Hi,

sorry to say, but nothing new in the west

Calvin
  Reply With Quote
Old 20th November 2009, 02:33 PM   #219
vaughn is offline vaughn  United States
diyAudio Member
 
Join Date: Feb 2008
Quote:
Originally Posted by chinsettawong View Post
Hi Matt,

I'm not sure what the problem is with your headphones. Did you insulate the copper side of the stators? I don't think that you need do redo the diaphragms. You might need to make sure that the diaphragms are where they are supposed to be at. That is they should not be sucked and stuck to either side of the stators. If that is the case, you will not hear anything.

What diaphragm coating formula did you use? When you listened to them before they went bad, how did you like the sound?

Do you still need an inspiration? I can tell you this. I'm invited to take my headphones and amp to show at Bangkok Audio Visual show next week. I'll take some pictures to show you later.

Last weekend I had a group of friends coming to my house just to listen to my headphones and speakers. They liked them.

Click the image to open in full size.
Hi Wachara,
I used the formula you provided with PVA glue and graphite and water. It is possible that the diaphragms are sticking as when I opened them up after my first try at a diaphragm one side was sticking and distorting. I have to say when I installed the second set of diaphragms and was listening they were sounding very good It was odd that both sides stopped working at the same time though. That makes me think something is going on with the energizer, but as I said before my voltages tested fine. I built the energizer with ceramic sockets that appear to be complete crap as the slightest movement of a tube causes intermittent contact. I think I am going to order some better quality sockets and rebuild the amp and see where that takes me.
  Reply With Quote
Old 20th November 2009, 03:02 PM   #220
diyAudio Member
 
chinsettawong's Avatar
 
Join Date: Jun 2006
Hi Matt,

If the diaphragm sticks to one side of the two stators, the tension might not have been enough. You can use a hair blower and try to heat shrink the diaphragms a little bit. Also, it might help if you can paint the copper side of the stator. I painted mine with 3 layers of plastic paint, and it worked fine.

You are almost there. Please try.

Wachara C.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Never made anything before Moondog55 Chip Amps 5 3rd September 2007 02:45 PM
Where to have PCB's made? mirzametica Parts 5 24th July 2006 06:31 PM
Home Made Tubes?? has anyone made one, is it possible?? John Biles Tubes / Valves 7 11th December 2005 01:29 AM
i made it...!!!!!!!!!!!!!!!!! tbla Everything Else 21 20th December 2002 04:46 PM


New To Site? Need Help?

All times are GMT. The time now is 09:57 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2