Redd 47 Dual - Tube Preamplifier

[JBB]

Redd 47 Dual - Tube Preamplifier

The next version of the 47th preamp in dual version.

The idea was not just to make another copy, but to create something other.
On the set this time, I was guided to a moderately modern sound.
Also, the topology of the project was radically revised.

Photos: http://jbb.ru/47-2/

Schematic: http://jbb.ru/schematics/47-2-shem.htm

Layout: http://jbb.ru/schematics/47-2-layout.htm

Удачи!

 

[ilfungo]

Great work!!!

 

[ruffrecords]

Also, the topology of the project was radically revised


Удачи!

In what way was the topology 'radically revised'??

Cheers

Ian

 

[rock soderstrom]

In what way was the topology 'radically revised'??

Cheers

Ian

It seems to be a fixed gain solution with pre and/or post amp attenuation? The rest is original REDD47 as far I can see. Nice work, very clean!

 

[JBB]

In what way was the topology 'radically revised'??

Cheers

Ian

Layout topology

 

[ruffrecords]

Layout topology

Ah, that makes sense; I could not see any  significant schematic changes.

Cheers

Ian

 

[Zjcc56]

What are the specs on the power transformer you used for this?

 

[JBB]

https://www.don-audio.com/Audio-Toroidal-Transformer-pri-230V-sec-250V-0-250v-63vct-02A-5V-2A

 

[Marcedona]

Biutiful.