A tube preamp Build

[tnvijay]

For a change,I built this 6N1 tube preamp for a friend who wanted to drive his solid state amp with a tube preamp...This has 16dB gain,flat from 10hz to 150 khz..The harmonic spectrum looks great...sharing some pictures

 

[diyaudio]

Good work.
How much is 2nd harmonic down by in dB?

 

[Sumanta]

Great effort!
Looks great.
Sounds great as well that I can surely guess as well from your past designs!

 

[reignofchaos]

No input switching?

 

[DilipPune]

Looks great

 

[tnvijay]

Good work.
How much is 2nd harmonic down by in dB?

Thanks..2nd Harmonic is down by 32dB

 

[tnvijay]

No input switching?

In this build ,no ..since the End user wanted a compact one and he is okay with a single input and output

 

[MaSh]

Looks great. Would it be possible to share approximate cost to build this? Also what other options are possible with this design, for example, whether a remote can be added, balanced outputs , etc?

MaSh

 

[sunder]

Looks elegantly in superb size.

 

[Hiten]

We rarely see diy with measurements. Nice work tnvijay. Looks good too.
regds.

 

[Kannan]

For a change,I built this 6N1 tube preamp for a friend who wanted to drive his solid state amp with a tube preamp...This has 16dB gain,flat from 10hz to 150 khz..The harmonic spectrum looks great...sharing some pictures

If this the one that Dr. Jagan is using?

 

[diyaudio]

Thanks..2nd Harmonic is down by 32dB

This will give the tube warmth

 

[tnvijay]

Looks great. Would it be possible to share approximate cost to build this? Also what other options are possible with this design, for example, whether a remote can be added, balanced outputs , etc?

MaSh

Thanks. Input selection is very much possible.and remote with a motorized Volume control ,.if we get the Module.we can add... This build as such Would approximately cost 18k to 20k in this plain vanilla form.. with premium Components along the Chain....A truly balanced in and out is not possible with this design

 

[tnvijay]

If this the one that Dr. Jagan is using?

For Dr.Jagan, I used a 12au7 pair... That preamp alsohas got a opamp based tone control with optional Bypass since he wanted to have a tone control...On audition I feel both are very similar sounding although I am slightly now Biased in favour of this 6N1 pair Tube..