AKSA's Lender Preamp with 40Vpp Output

Warning: as @Soundhappy says, poor design then not tested yet.

Here all the datas for the mainboard (added connector 3p. for headphone output option).

JP
 

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My Golly JP,

That looks pretty good!
I am very pleased that my café doodlings have taken reality, thanks to XRK, and you, and a few others building. This does work very well, and I use this system on one of my commercial amps which has astonishing performance. I really like the sound quality of single ended circuit, they really are different to symmetrical topologies.

HD
 
You are welcome Pcgab. But much thanks needs to go to Hugh Dean for this super design that we all now have for free. I assume you will be making the SMD version?

We are definitely not "SMD Haters" here. 🙂

Nor are PCB connector haters...

Very true, many thanks to Hugh Dean indeed!

Yes, SMD version for me, I've got to put that reflow station to good use!
 
I´ve never paid extra charges; here online price calculation:
- mainboard 9EUR for batch of 30 (35µm, HAL, top and bottom silk)
- THT 2.3EUR (35µm, HAL, top silk)
- SMD standard 2.9EUR for batch of 30 (35µm, ENIG, top silk)
- IMS 4.6EUR (35µm, HAL, top silk)

Up to you, (with @AKSA permission? I´m carefully) for GB!

JP
 
I´ve never paid extra charges; here online price calculation:
- mainboard 9EUR for batch of 30 (35µm, HAL, top and bottom silk)
- THT 2.3EUR (35µm, HAL, top silk)
- SMD standard 2.9EUR for batch of 30 (35µm, ENIG, top silk)
- IMS 4.6EUR (35µm, HAL, top silk)

Up to you, (with @AKSA permission? I´m carefully) for GB!

JP

Which board house are you getting the quotes from? Is the IMS version price for qnty 1 board?
 
@Sk8Ter

I´m switching to Solidworks so I can use 3D Step models (or any other 3D model) directly. It´s finally very simple to generate ISO explosion view or 3d PDF.

Test run with MoFo pending.

JP
 

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I use SolidWorks - I think it is one of the easiest to use fully-featured CAD/CAD programs out there. I am still on v2009. My one complaint is that newer versions files cannot be read by older versions. So conversion to an external standard is needed for me to read a newer version of SW files.