Aleph 60 building thread

[PKI]

Ok, I got it. However, there is no confusion between nomenclatures in my head! No, I just was thinking about another cap!

 

[PKI]

Made a thing -- nothing.

An externally hosted image should be here but it was not working when we last tested it.

 

[Zen Mod]

go back to original FE , so we can start from there

 

[PKI]

Understood, I will get original FE transistors next week or week after I guess.

 

[cochleus]

make this and try , connecting it at amp output - maybe you're having oscillation on output

if LED's are lit , it's there

ZM,
Nice simple circuit Would it work with a current source amplifier as wired?

Regards,
Cochleus

 

[PKI]

Finally, I can say that I made all adjustments and the amps sound amassing!
It is the most pleasant mid-high I've ever heard! Thank you all for helping me! I will post some pics of finished amps. Happy Christmas!

 

[Zen Mod]

 

[6L6]

Wonderful to hear that your project is working properly and making music!!!!

What was the issue? What did you do to it to fix it?

 

[Danger Mouse]

hello,
I have a question

At the Moment i`m collecting missing part for my aleph 60 clone.

Ive read there are some Problems using irf 9610 for Input stage.

I`ve looked at fairchild and they have the FQP3P20 as alternative.

What do you mean is it a good idea to use them or better take the irf parts?

thanks for a answer if anybody had tryed it

 

[Zen Mod]

9510 ,9520,9530,9610,9620,9630

whatever you like - smaller number having less capacitance

 

[Danger Mouse]

Why an Aleph 60? Do you want organize concerts or do you have unefficient speakers - 80 dB/W/m - or do you live in a hall?
May be, an Aleph 3 or Mini-Aleph is the better choice.
May be, an "Aleph-Zen" is the better choice: ONE psu, without different-amp in feedback.
Much more better: "Zen-XA".

What sort of speakers do you have? Multi-way? In big wooden cases?

LG

I already have an Aleph J and F5 im pretty happy with them.
I wanted to build a bigger amp, to maybe drive not so easy Speakers.

At Moment my Speakers are easy to drive i have a pair KEF iQ7SE
and These: diffusori Tipsy by Alberto Bellino
Maybe i will later build a pair duetta`s so more power is needed.
Ore looking for some used dynaudio contour 3.4.
Heard them by a friend, they Sound fantastic. But 86db at 4ohm isnt high Efficiency.

If i have a Little bit time i will post some pics of my slow progress

 

[cumbb]

All these speakers must be tuned very very hard, before they sound fairly. In my mind. Their problems are the build in of the speakers, the rumble-, flat-, grey-sounding wooden-case and the toooooo complex crossovers on boards and the inner wire and so on. Much much work.
Do you use for the Aleph 60 boards?

LG

 

[Danger Mouse]

Pics

Pics shows mainly PSU and boards for the output devices.

Next step will be complete psu wiring + test.

Then building a softstart for the psu.

 

[Danger Mouse]

And maybe this will be the Pre for this Amp

 

[Zen Mod]

neat

 

[PKI]

Really nice!


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