WTB Hans Polak MC phono

[secanbj]

Would like to buy a Hans Polak MC phono published in Linear Audio

/Anders

 

[Hans Polak]

I would be happy to supply you with the Gerbers to make one yourself.
Eventually I could also provide two pairs of selected AD797’s.

Hans

 

[secanbj]

Thank you Hans, I am still hesitating a bit due to the SMD soldering, but if nobody wants to part i might go that way.

 

[jan.didden]

Once you master SMD soldering, you have a whole new universe of parts to chose from.
It's not particularly difficult but you must get the knack of it.
A good advice I followed myself years ago is buy one of those 'SMD training kits' that float around on the 'net; just a bunch of parts and a PCB that doesn't do anything but lets you get up to speed with it quickly.

Like this: https://static.eleshop.nl/mage/media/downloads/ST0001.pdf
https://nl.aliexpress.com/i/1005004...nQKEALw_wcB&gclsrc=aw.ds&gatewayAdapt=glo2nld
I never get down to below 1206 though. I know my limits!

Jan

 

[grataku]

Hans,
I wouldn't mind a pair of completed boards myself. I have a problem with smd soldering. I rather buy the working boards, do the assembly and enjoy it.
BTW is there a power supply to go with it?

 

[Hans Polak]

There are several options for the power supply described in the LA article.
Start with a dual 24V SMPS followed by a circuit that converts this into a stable low noise +/-18Volt.
The Jung-Didden regulator does an excellent job.
But you could also use the LM317/LM337

Hans