Elektor mc phonopreamp

[arindamcc]

Hi quality ready made phonopreamp are very costly.So i decide to build a propreamp.After long (2 yrs) searching all internet and elektor electronics (1974 to 2011) and other electronic magazine I am found a mc phono peramp circuit and i think it is the best diy DC coupled (No big size cap on input means better low frequency response) phonopreamp.


Specification

Accuracy of RlAA curve - O.1 dB

Input sensitivity - 250uv

Input Impedance - 100 OHM

Output level - 200mv

Terminating impedance - 2k

Signal-to-noise ratio - 75 dB
(A-weighted)

Distortion - <0,006%

Supply voltage - 15V

Current drain - 24 mA


PCB are available through http://be.eurocircuits.com/Offtheshelf/Offtheshelfdefault.aspx?type=E&lang=en&an=910016#

But remember elektor used very high quality parts in this design so build cost also very high.

If any body interested pl PM me for full article.

Here is the schematic

:clapping::clapping::clapping::clapping::clapping:

 

[reubensm]

lovely...the more adventerous would re-build the phono preamp of the NAD 3020...its a great phone stage...

 

[arindamcc]

Ordered PCB from Eurocircuits price 19 euro.:yahoo::yahoo:

 

[quad]

Can you source the MAT03 locally?
Cheapest on digikey is $20, and you will need one per channel.

IC TRANS DUAL MATCHED PNP TO78-6 - MAT03FHZ

 

[arindamcc]

332E Precision Metal Film Resistor 0.1% $1.26 hyeah:hyeah:

 

[captrajesh]

Interesting. Wonder how does this compare with the one being talked about here

 

[Hiten]

captain, I think this is moving coil phono stage. and one you mentioned is moving magnet.

 

[captrajesh]

captain, I think this is moving coil phono stage. and one you mentioned is moving magnet.

Good catch Hiten, my bad, didn't notice that.

 

[linuxguru]

If you can't get the MAT03, you can try the 2sa979 dual-PNP which costs only about half as much as the MAT03. If you can't find it, PM me and I'll dig out two pairs which I have lying around somewhere.

 

[arindamcc]

If you can't get the MAT03, you can try the 2sa979 dual-PNP which costs only about half as much as the MAT03. If you can't find it, PM me and I'll dig out two pairs which I have lying around somewhere.

Thanks for suggestion but 2SA979 is different type not suitable for that purpose.

 

[arindamcc]

It is not a problem to get MAT03 because digikey have sufficient stock. My budget for this project is Rs 15000 maximum because 95% parts for this project are not available in India.

 

[arindamcc]

Interesting. Wonder how does this compare with the one being talked about here

I think air and space hyeah:

 

[arindamcc]

Received PCB today :yahoo::yahoo::yahoo::yahoo:

 

[miroflex]

Received PCB today

Hi,

Any further progress?

All the best!

 

[Hari Iyer]

Received PCB today :yahoo::yahoo::yahoo::yahoo:

Any photograph of the finished PCB?

 

[arindamcc]

Didn't build the project.PCB is intact. Now I am working on JB Tetra Sans PS phono stage.

 

[mbg]

Hi arindamcc,

are you able to send me the article.

Thanks,

Mike

 

[arindamcc]

Let me know your email address