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Old 20th March 2011, 11:34 AM   #1
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Default This is my discrete headphone amplifiler

Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.

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^^.
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Old 20th March 2011, 01:57 PM   #2
Bonsai is offline Bonsai  Taiwan
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Looks very nice. Can you post a link to the schematic?
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Old 20th March 2011, 02:17 PM   #3
lineup is offline lineup  Sweden
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Quote:
Originally Posted by Bonsai View Post
Looks very nice. Can you post a link to the schematic?
Click the image to open in full size.

Link:
HeadWize - Project: A Pure Class A Dynamic Headphone Amplifier by Kevin Gilmore
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Old 20th March 2011, 03:52 PM   #4
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You are very kind man.^^

I suprised your quick reply. Thanks.
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Old 20th March 2011, 04:13 PM   #5
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Quote:
Originally Posted by Bonsai View Post
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.
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Old 20th March 2011, 04:57 PM   #6
lineup is offline lineup  Sweden
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Where did you find jfets?
2SK389 and 2SJ109
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Old 20th March 2011, 05:31 PM   #7
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Originally Posted by lineup View Post
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.
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Old 20th March 2011, 06:06 PM   #8
lineup is offline lineup  Sweden
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yes, 2SK389 2SJ109 are difficult to find

2SK170/2SJ74 works well here
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Old 20th March 2011, 06:12 PM   #9
Mooly is online now Mooly  United Kingdom
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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.
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