My Aleph 60

[Nat Riscica]

Hello,

Some pictures of my Aleph 60. The Aleph's drive a pair of Klipsch Cornwall with no bump, non hum, no hiss.... only Music!😀

Same data:

Power supply +/- 33 Volt;
Bias 2,4 A;
temperature rise of about 18° over the heat sinks😎
Ofset +/- 6 mV

The next step: Aleph P.

Thank you Mr. Pass!
Thank you Kristijan for the fine Pcb's.

Nat

 

[Nat Riscica]

inside

 

[Nat Riscica]

The front end

 

[Nat Riscica]

The currente side:

 

[Nat Riscica]

The gain side:

 

[Nat Riscica]

My Aleph L

 

[roddyama]

Very nice job Nat.

Your construction is excellent. Tell us more on how they sound.

I'm wondering, what is the function of the 2 large 68ohm resistors?

 

[Nat Riscica]

At work....

 

[Nat Riscica]

Thank you Roddyama for your words,

the resistors are 0,68 Ohms and are in CRC filter arrangment.

They sond powerfull, deep, sweet and magic!!

Sorry for my bad english.....

Nat

 

[Alain Dupont]

Nat,

Nice job, well done. 😎

And about the sound of these ? I am also interested in the Pcb for CCS
for my X-BOSOZ

Alain.

 

[Nat Riscica]

Hello Alain,

The sound relaxed and very easy to listen. it's powerfull at the bass with a lot of details in the bottom end. The midrange is liquid and sweet with no grain. The top end is a velvet on my Klipsch. The image is liquid and plastic like a Leitz Summicron lens......

I'm Happy🙂

 

[Andypairo]

Eccezziunale veramente ! 😀

Very very nice.... where did you get those cases w/heatsinks (and how much did they cost?)

Cheers

Andrea

 

[Nat Riscica]

Hello Andrea,

thank you for your comment..😎

The case with the heat sinks is the model 04/400 from HiFi 2000 and it cost me about 125 €
He work great, at 2,4 A I can touch it with non problem.

Nat


Grazie😉

 

[Faber]

Very very nice.... where did you get those cases w/heatsinks (and how much did they cost?)

Andrea, you can find it at www.digitex.it, under "contenitori per elettroniche" then "04/400 Pesante dissipante"

Nice work indeed, I can't use a similar case in my room, but all the work is amazing.
Congratulations!

 

[Nat Riscica]

Thank you Fabrizio.😀

 

[george a]

Nat

Pardon my ignorance.

But aren't the 68 ohm resistors across the supply caps shorted out by the copper bar???- thereby effectively taking them out of circuit?? ie: no CRC

George

 

[Nat Riscica]

Hello George A,

the resistors are 0,68 Ohm and are mounted on a veroboard no on copper bar, so there is a crc. Every cap is 47000 uF, so there is 47000 - 0,68 - 47000 on plus and minus side.

Nat😎

 

[Nat Riscica]

sorry, the resistor value is 0,34

Nat

 

[eLarson]

a bit off-topic, but which turntable is that?

Nat,

Is that a Benjamin-Miracord turntable in the photo next to the reel-to-reel tape machine?

Regarding the amp itself, I like the power supply construction.

Erik

 

[Nat Riscica]

Hello Erik,

the turntable is a Thorens TD 160 MK V S with a Mission Cyrus arm and the sweet Shure V15 IV MR.
Near the reel to reel tape machine there is a Philips DVD 963 SACD.

Nat