lampizator srpp help

[chokesrule]

forgot to mention the transformer secondart is 230volt centre tap and its resistance is 15ohm

 

[tecnogadget]

Hi !! Im performing the same SRRP Lampizator circuit and need some help ! I don't want to disturb this post so i leave a link to mine

http://www.diyaudio.com/forums/tubes-valves/249209-newbie-srpp-tubes-1-question-2.html#post3784000

The issues are displayed at the last entry , after the UPDATES
Any kind of help would be very apreciated ! Thanks in advance

 

[Breezio]

Dear all,

As I see a group of fellow DIYers with lots of experience around tube output stages for DACs, I'd like to ask your opinion on a recent post of mine.

Essentially, I happily lampized my CD player and now trying to improve.

https://www.diyaudio.com/forums/tub...ubes-vs-burson-opamps-output.html#post5755879

Thanks!

Fabrizio

 

[Lingwendil]

Dear all,

As I see a group of fellow DIYers with lots of experience around tube output stages for DACs, I'd like to ask your opinion on a recent post of mine.

Essentially, I happily lampized my CD player and now trying to improve.

https://www.diyaudio.com/forums/tub...ubes-vs-burson-opamps-output.html#post5755879

Thanks!

Fabrizio

First, some questions-

What DAC chip are you using?
What are you intending to drive with this setup?
How much signal output do you need? Often gain is not really needed or even desirable.

 

[Bigun]

Your voltage out DAC has differential outputs so another all-tube solution could be this: Balanced-Ouput DACs and Tubes and Aikido

 

[huggygood]

thanks bigun

 

[Bigun]

I've been thinking about it myself: https://www.diyaudio.com/forums/digital-source/174820-marantz-cd-5003-mod.html#post5754005

 

[huggygood]

I must have in the 10 cd player with tda 1541 and this is my favorite DAC.
I also have 3 or 4 with tda 1540 and 4 or 5 with tda1545.
I have collected a hundred tubes or so in the last few years for when I really learned how to do it.
I think it's time to try

 

[Breezio]

First, some questions-

What DAC chip are you using?
What are you intending to drive with this setup?
How much signal output do you need? Often gain is not really needed or even desirable.

Hi Lingwendil,


The DAC is the MN6471/4 and the CD player needs to drive a tube amp (AMC CVT3030). Please refer to the original post with the schematic details.


Not sure about the gain, standard line-in signal is ok.
In any case the signal directly out of the dac is already strong enough as I tried to connect it to the RCA sockets, completely bypassing the output stage. Decided not to keep it as I didn't like what I was hearing.