NAIM NAIT 2 DIY

[Oleg Turbin]

Old design is better for old rock music

NAC42.5 and Nait2 photo in attachment

 

[caowei]

My friend
Maybe
But I not find the connection of 47uf tantalum cap near bias transistor on yours photo
Maybe this one is old photo ?

Hi oleg
The temperature compensation transistor next to 47uf is designed below the PCB due to its need to detect the temperature of the heat sink (chassis bottom plate). Currently, most new NAPs adopt this design.

 

[Oleg Turbin]

Good day
Mr CaoWei
I mean this one
Not have roads on board for connecting parts 🙂)

 

[Oleg Turbin]

Original board roads path

 

[caowei]

My friend, you have observed very carefully. The PCB in the picture is the first version (number 20230425), and I only used it for photography. I also made a finished product, but I have never sold this version. I started selling it from the second version (number 20230510), and I guarantee that the second version is very good without any problems.

 

[Oleg Turbin]

Nait2 and NAP200
Sizes

 

[Oleg Turbin]

And NAP200 with NAP140 and NAP160 boards
Sizes
Evolution of NAPs

The NAP200 board is not my draw I buy this in market

 

[jpk73]

Guys, you are amazing! Will you upload some gerber files to this thread...? I am interested in all hand drawn Naim boards.

 

[Oleg Turbin]

My friend you search some like this one ?

I think this gerber is not have in Naim Fabric too …

 

[jpk73]

Yes, for example! But also the other boards are interesting: Nait, NAC...

 

[Oleg Turbin]

Maybe better way add to NAP155xs are preamp ?

 

[Oleg Turbin]

New RND department of Naim Audio in Diyadio
🙂))

 

[Oleg Turbin]

My friend, you have observed very carefully. The PCB in the picture is the first version (number 20230425), and I only used it for photography. I also made a finished product, but I have never sold this version. I started selling it from the second version (number 20230510), and I guarantee that the second version is very good without any problems.

Good day
Mr Caowei
This design is better than 05.2023?

 

[huggygood]

what led you to choose this design for mounting the output transistors?

 

[Oleg Turbin]

Anywhere I draw of this model naps too 🙂) for myself from original board

End of design the NAP155XS

 

[limono]

Any worthy Naim preamp PCB's on Allieexpress ?

 

[Oleg Turbin]

Maybe this one but I not sure for quality

https://sl.aliexpress.ru/p?key=a27vUBR

Supplier write about original good parts

 

[Oleg Turbin]

Also my steps and walking about nap155xs

 

[jpk73]

I have some PCBs left over from my NAC552 clone project. You can contact me by PM if you are interested.

 

[Oleg Turbin]

You mean this one design?

I draw this about one year ago from China
board clone and checking with original 552

Ps. novodel it’s my place slang …