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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Headphones for soundlab
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Pehr



Joined: Aug 14, 2005
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PostPosted: Sun Aug 14, 2005 12:38 pm    Post subject: Headphones for soundlab Reply with quote  Mark this post and the followings unread

I saw that Alan had an output jack for headphones on one of his soundlabs. I wonder if it is easy to make? Is it just like the main output but with a stereo jack instead? Confused
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mosc
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PostPosted: Sun Aug 14, 2005 1:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

welcome Pehr

You will need some sort of headphone amplifier. Here is a link which may provide you with some background. There are many circuits on the web if you google around.

http://www.headwize.com/projects/showproj.php?file=cmoy2_prj.htm

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Wild Zebra



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PostPosted: Mon Aug 15, 2005 8:44 am    Post subject: Reply with quote  Mark this post and the followings unread

I've made this little amp http://www.runoffgroove.com/ruby.html
and here is a schem to add a headphone here http://diystompboxes.com/sboxforum/topic-31495.html&highlight=ruby+headphone
and if you need a stripboard layout I think I can find it
These are awesome little amps

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mosc
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PostPosted: Mon Aug 15, 2005 10:10 am    Post subject: Reply with quote  Mark this post and the followings unread

OK, Mr, Zebra. That one is much better. Buffered input and runs on a single supply voltage. thumb up
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Wild Zebra



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PostPosted: Mon Aug 15, 2005 10:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Sorry Mosc didn't mean to trump you Razz . I've build this along with alot of others, its great. Easy and all the parts can even be found at Radio Shack.
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mosc
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PostPosted: Mon Aug 15, 2005 10:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Wild Zebra wrote:
Sorry Mosc didn't mean to trump you Razz .


Don't worry. I gave up Bridge years ago. Wink

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Pehr



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PostPosted: Mon Aug 15, 2005 9:13 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks Very Happy
I will make one as soon as I have built the SL. It will probably fit in the extra holes on the PCB Cool
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kobresia



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PostPosted: Tue Aug 16, 2005 3:46 am    Post subject: Reply with quote  Mark this post and the followings unread

I've built a simple headphone amp for my SL using the design in the link below. The other designs listed may be better alternatives, you decide. Instead of the 250k pot, input is connected to the SL main volume pot. The resistors before output could be way higher, as 100 ohm gives way too much power. I'm using 220 ohm, I'd recommend somewhere in the range of 1k-10k to protect your headphones should you accidentaly turn the volume up.
http://www.paia.com/headbuff.htm
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Pehr



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PostPosted: Mon Nov 07, 2005 2:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

0k, I've built both the ruby and the one from headwize now and I have to say that the one from headwize is really good! Very Happy I've built a stereo one for my mp3-player and finally I can hear the bass! Wink

The ruby, is 0k. A little noisy but 0k Smile

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Wild Zebra



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PostPosted: Tue Nov 08, 2005 8:26 am    Post subject: Reply with quote  Mark this post and the followings unread

Yeh, I'd have to say the ruby is designed more for amplifying a guitar or other instrument and less like a "power amp" or whatever you wanna call it. The ruby I mabe gets used mostly for sittin around playing guitar of the SL on a trip. The gain is pretty nice if'n you like that sort of thing.
I'll have to try the headwise amp. Thanks for the update.

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