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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

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Old 9th February 2012, 02:18 PM   #11
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Originally Posted by WDYSUN View Post
I wonder whether it is too complicated. I thought a simple two stage AD797 could do the job anyway.

P
I dont see how it can get simpler then that. The DIYGENE PCB has 3 inputs and single ended or balanced output, thats why it looks complicated. If you only use one input with singled ended output, its really just one NE5534 for input stage and one AD797 for output stage. You can leave the rest of the pcb unpopulated.
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Old 9th February 2012, 02:37 PM   #12
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the circuits from these clone kits do not have correct component values as in MBL6010C or D
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Old 9th February 2012, 05:27 PM   #13
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the circuits from these clone kits do not have correct component values as in MBL6010C or D
If you know the correct component values or have the schematics would you mind sharing them with us?
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Old 10th February 2012, 11:02 AM   #14
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Originally Posted by apoopoo999 View Post
I dont see how it can get simpler then that. The DIYGENE PCB has 3 inputs and single ended or balanced output, thats why it looks complicated. If you only use one input with singled ended output, its really just one NE5534 for input stage and one AD797 for output stage. You can leave the rest of the pcb unpopulated.
I still wonder whether somebody tried it out!

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Pietro
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Old 10th February 2012, 11:05 AM   #15
SY is offline SY  United States
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Why would you buy something being sold with a fraudulent trademark? If the seller is dishonest enough to advertise this way, what would give you confidence that the circuit he's claiming has any resemblance to the original or is competently executed?
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Old 10th February 2012, 02:58 PM   #16
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Default 601x d

the interior
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Last edited by arthur; 10th February 2012 at 03:04 PM.
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Old 10th February 2012, 06:33 PM   #17
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Why would you buy something being sold with a fraudulent trademark? If the seller is dishonest enough to advertise this way, what would give you confidence that the circuit he's claiming has any resemblance to the original or is competently executed?
I dont know if you realize many of the projects in this forum are based on "clones" Those of us who are interested in "clones" dont expect nor are we interested in an exact replica of the original. Its true that these designs are sometimes incompetently executed. Thats why many of these long threads about a certain "ebay clone" end up being tweaked until they are un-recognizable. But still, they are a good and inexpensive starting point for us diyers.
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Old 10th February 2012, 07:04 PM   #18
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Selling stuff using other people's trademarks is illegal, immoral, and has no possible justification other than a sleazy way to make money.
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Old 10th February 2012, 07:56 PM   #19
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Selling stuff using other people's trademarks is illegal, immoral, and has no possible justification other than a sleazy way to make money.
Here is the definition of trademark infringement:

Infringement may occur when one party, the "infringer", uses a trademark which is identical or confusingly similar to a trademark owned by another party, in relation to products or services which are identical or similar to the products or services which the registration covers.

Please note the word identical

Here's MBL's trademark

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I dont see it anywhere on the PCB. I really doubt MBL has the rights to just the words "MBL 6010D"
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Old 10th February 2012, 09:45 PM   #20
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Why would you buy something being sold with a fraudulent trademark?

Maybe because it is exactly what the target market craves.
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