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I will commission simple PCB with modification
I will commission simple PCB with modification
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Old 13th August 2017, 07:14 PM   #1
Bukowski26 is offline Bukowski26
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Default I will commission simple PCB with modification

hi,

I looking for person who will draw simple PCB from schematic. This is Linkwitz preamp for WM61a with modification. I have to mean add GAIN potentiometr. That's all. I need the project to make PCBs in profesional made. Of course with description and files for drilling.

I need this PCB for measurement in live room in studio bulding.

Offer pleas send me for private message. I can pay to paypal. I have mainly schematic and ancillary schematics.

Regards!
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Old 13th August 2017, 08:20 PM   #2
Cal Weldon is offline Cal Weldon  Canada
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I will commission simple PCB with modification
Is this a protected document you are asking for?
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Old 13th August 2017, 08:22 PM   #3
rayma is offline rayma  United States
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Quote:
Originally Posted by Cal Weldon View Post
Is this a protected document you are asking for?
This may be the one. System Test
Here's his input attenuator. http://www.linkwitzlab.com/images/graphics/microph2.gif

Last edited by rayma; 13th August 2017 at 08:25 PM.
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Old 13th August 2017, 09:31 PM   #4
Variac is offline Variac  Costa Rica
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I will commission simple PCB with modification
I think we need the OP to specify a link to what he's copying, and we can ask Mr. Linkwitz
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Old 13th August 2017, 10:12 PM   #5
nigelwright7557 is offline nigelwright7557  United Kingdom
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If you provide a circuit diagram I can quote you for it.
I already have a LR4 circuit in my system I designed a few years back.
Adding a pot would be easy enough.
Do you want me to get pcb's made too ?
China PCB Prototype & Fabrication Manufacturer - PCB Prototype the Easy Way do them dirt cheap if pcb is less than 10cm by 10cm.
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Old 14th August 2017, 08:30 AM   #6
Bukowski26 is offline Bukowski26
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So ... I need project witch not protected by author. Can someone draw simple preamp for WM61a with regulation GAIN? linkwitz preamp is really cool for measurement.
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Old 14th August 2017, 05:51 PM   #7
Mark Whitney is offline Mark Whitney  Netherlands
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Quote:
Originally Posted by Cal Weldon View Post
Is this a protected document you are asking for?
It should be made clear that circuits can only be protected by a Patent.

If there is no Patent then you can design your own PCB from the original schematic/circuit.
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Old 15th August 2017, 06:19 PM   #8
Bukowski26 is offline Bukowski26
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Quote:
Originally Posted by Mark Whitney View Post
It should be made clear that circuits can only be protected by a Patent.

If there is no Patent then you can design your own PCB from the original schematic/circuit.
That's the point. I need PCB from the original schematic/circuit with add GAIN. If will be work fine I will be need clones guitar stompboxes PCB project.
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