This is my discrete headphone amplifiler

won43113 · 20th March 2011, 11:34 AM

It's my decrete headphone amplifiler. This amp's Schecmatic is a Kelvin Gilmore's from headwze website. Sound is very clear and powerful. It's just my taste^^.

Bonsai · 20th March 2011, 01:57 PM

Looks very nice. Can you post a link to the schematic?

lineup · 20th March 2011, 02:17 PM

Quote:

Originally Posted by Bonsai

Looks very nice. Can you post a link to the schematic?

Link:
HeadWize - Project: A Pure Class A Dynamic Headphone Amplifier by Kevin Gilmore

won43113 · 20th March 2011, 03:52 PM

You are very kind man.^^

I suprised your quick reply. Thanks.

won43113 · 20th March 2011, 04:13 PM

Quote:

Originally Posted by Bonsai

Looks very nice. Can you post a link to the schematic?

plz consult under reply linked a schematic and address on headwize.

If you wanna make this amp, must read all that article carefully.

I have confidence that you'll have satisfaction from this amp.

lineup · 20th March 2011, 04:57 PM

Where did you find jfets?
2SK389 and 2SJ109

won43113 · 20th March 2011, 05:31 PM

Quote:

Originally Posted by lineup

Where did you find jfets?
2SK389 and 2SJ109

I've not found 2SK389 and 2SJ109.

So, I replced 2SK170/2SJ74(single type) instead of 2SK389 and 2SJ109.

no problem at all. But probabley need a pair matching of FET.

lineup · 20th March 2011, 06:06 PM

yes, 2SK389 2SJ109 are difficult to find

2SK170/2SJ74 works well here

Mooly · 20th March 2011, 06:12 PM

Very nice build...

when the page finally loads with oversized margins. 3.5 minutes on a 16mb connection for it to load.

Whats wrong with a few smallish .jpgs attached to the thread.

20th March 2011, 11:34 AM	#1
won43113 diyAudio Member Join Date: Apr 2010	This is my discrete headphone amplifiler It's my decrete headphone amplifiler. This amp's Schecmatic is a Kelvin Gilmore's from headwze website. Sound is very clear and powerful. It's just my taste^^.

20th March 2011, 01:57 PM	#2
Bonsai diyAudio Member Join Date: Aug 2006 Location: Taipei, Taiwan	Looks very nice. Can you post a link to the schematic? __________________ bonsai http://www.hifisonix.com/

20th March 2011, 04:57 PM	#6
lineup diyAudio Member Join Date: Dec 2005 Location: the north	Where did you find jfets? 2SK389 and 2SJ109 __________________ lineup

20th March 2011, 06:06 PM	#8
lineup diyAudio Member Join Date: Dec 2005 Location: the north	yes, 2SK389 2SJ109 are difficult to find 2SK170/2SJ74 works well here __________________ lineup

20th March 2011, 06:12 PM	#9
Mooly diyAudio Member Join Date: Sep 2007	Very nice build... when the page finally loads with oversized margins. 3.5 minutes on a 16mb connection for it to load. Whats wrong with a few smallish .jpgs attached to the thread. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*


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20th March 2011, 03:52 PM	#4
won43113 diyAudio Member Join Date: Apr 2010	You are very kind man.^^ I suprised your quick reply. Thanks.

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