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Old 13th November 2012, 04:08 AM   #941
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Yes, I lived here 4 yesrs ago.
John, patent meant you should keep your product designed away from Ebay seller whom need to sell a copy.

Regard
Anadigit
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Old 13th November 2012, 04:21 AM   #942
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There is NO patent material in the schematic I published. I gave it to YOU to study, and anyone else, as well. In my opinion, it is a good design, but not a Vendetta or Constellation grade design. They are my best efforts.
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Old 13th November 2012, 05:00 AM   #943
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Default Great

Thanks, John
I'll try to do a little bit MOD on your product.
I loved its sound but what I though it was Vendetta, I saw many review refer to Vendetta and there're no talk about their different since this week you've shown your designed.

Looking for JC 2 in the next job :-)

Regard
Anadgit
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Old 13th November 2012, 11:22 AM   #944
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Quote:
Originally Posted by john curl View Post
The only real mod for this design is the IC's used.
ADA-4898 ?

ADA-4899 ?

AD-8099 ?

Only speculation

Regards

eD

Last edited by EDDELARUE; 13th November 2012 at 11:42 AM.
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Old 13th November 2012, 11:56 AM   #945
gk7 is offline gk7
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What would a suitable (available) substitute for the 2SK246 Fets be ?
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Old 13th November 2012, 12:31 PM   #946
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Y means an IDSS from 1,2 to 3,0 mA. Think Fets with IDSS around 2 mA are suitable.
Reinhard
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Old 13th November 2012, 02:25 PM   #947
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Before any details are argued over, let us come to understand the schematic as a block diagram. It is a 2 stage design with the high frequency EQ between the 1'st and 2'nd gain block. (1600 X .047uF) Then the second gain block equalizes the bass boost that is also necessary. This is essentially the same block diagram as the Vendetta Research, except that the Vendetta uses an OPEN LOOP transconductance amp instead of a high feedback op amp. The additional op amp sections add balanced output and servo control of the DC gain. Almost any low current fet can be used as an output offset, or it can be ignored, if you want. The circuit will work without it.
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Old 13th November 2012, 11:51 PM   #948
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Any 1A or so, complementary power mosfets will work.
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Old 14th November 2012, 12:34 PM   #949
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Default Stereophile

Everyone, Have you ever seen this review & ranking ?

Thanks
Anadigit

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Old 14th November 2012, 09:13 PM   #950
toufu is offline toufu  United States
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Anadigit, are you trying to sell a clone version of this or what?
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