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-   -   The Kuartlotron - keantoken's simple error-correction superbuffer (https://www.diyaudio.com/forums/analog-line-level/251413-kuartlotron-keantokens-simple-error-correction-superbuffer.html)

Project16 21st November 2015 12:30 PM

With a friend we used the kuartlotron after RIAA corrector (D.Self) and before the entry line as it found that the sound lacked a little safe and well although Kuartlotron is not provided for here he corrected this issue.

udailey 21st November 2015 12:32 PM

Could you please reword that last bit? Im confused about what you meant.

Project16 21st November 2015 01:01 PM

Quote:

Originally Posted by udailey (https://www.diyaudio.com/forums/analog-line-level/251413-kuartlotron-keantokens-simple-error-correction-superbuffer-post4524541.html#post4524541)
Could you please reword that last bit? Im confused about what you meant.

For a friend I made an RIAA equalizer with a beautiful sound but lacked a little "punch" (a little too flat). So we tried the Kuartlotron between the RIAA corrector and line input preamplifier and immediately the sound gained dynamics.

I hope this is clear (online translation) :D

udailey 21st November 2015 01:03 PM

Yes, perfect. Thank you.

thimios 21st November 2015 03:24 PM

8 Attachment(s)
Quote:

Originally Posted by keantoken (https://www.diyaudio.com/forums/analog-line-level/251413-kuartlotron-keantokens-simple-error-correction-superbuffer-post4524522.html#post4524522)
Can you list the exact parts you used? Is this before trimming?

Is this for me?
Look all transistors bc550c,bc560c by fairchild.
Farther test using Right Mark audio analyzer

thimios 21st November 2015 03:31 PM

3 Attachment(s)
Using ARTA

keantoken 21st November 2015 04:36 PM

Not a bad result. Can you tell which harmonics are from the soundcard and which are from the Kuartlotron?

thimios 21st November 2015 04:50 PM

2 Attachment(s)
Quote:

Originally Posted by keantoken (https://www.diyaudio.com/forums/analog-line-level/251413-kuartlotron-keantokens-simple-error-correction-superbuffer-post4524717.html#post4524717)
Not a bad result. Can you tell which harmonics are from the soundcard and which are from the Kuartlotron?

I can post a sound card loop test.
Here .With ARTA & with SpectraLab

sarathssca 23rd November 2015 06:09 AM

Hi ,

Can we run this buffer using +/-6 or +/-7v power supply? will it impact its performance?

keantoken 23rd November 2015 12:41 PM

It will reduce the clipping voltage, and you will want to trim R5 to get TP at half the rails. Generally performance decreases with lower voltage, but it probably won't be too bad.


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