Aleph J illustrated build guide

[Chris In Milwaukee]

Great news! Enjoy!

I am now playing some songs through my Aleph J and it is certainly one of the best! Audacious running on a Raspberry PI with onboard i2s DAC is the source. First thing I noticed was rock solid imaging!

Still need to clean up some wiring, and also find better heat sinks for the bridge rectifiers before I can close the lid!

Very happy with the build and how it turned out!

 

[poseidonsvoice]

hanair,

Please share pics 😀

Best,
Anand.

 

[peppennino]

] PICS!!
😀​

 

[Zen Mod]

no porn, no glory

 

[hanair]

Sure, I will certainly post some pics later tonight 🙂

 

[hanair]

My first Class-A pictures!!

Some pictures of my first build of the Aleph J -- my first ever Class-A in a proper chassis! I have been listening to this during the day and they sound awesome!

Thanks to everyone for their help and suggestions! Special thanks to Nelson Pass, 6L6 and Zen Mod!

Being new to Class-A power amp, I had to learn a lot of new things. My next build (or rebuild) will be in a bigger and better chassis, and with better power supply!

Glad to be part of this amazing community!

 

[poseidonsvoice]

Very nice and neat, I dig the blue flame!

Best,
Anand.

 

[hanair]

That is my daughter's contribution!

 

[Kingsportal]

The bypass are not necessary... the factory wired Aleph amplifiers didn't have them.

Use whichever you like, or not, the amp will work properly and sound fantastic either way.

How would the sound change if I removed the 2 bypass caps?

 

[peppennino]

Some pictures of my first build of the Aleph J -- my first ever Class-A in a proper chassis! I have been listening to this during the day and they sound awesome!

Thanks to everyone for their help and suggestions! Special thanks to Nelson Pass, 6L6 and Zen Mod!

Being new to Class-A power amp, I had to learn a lot of new things. My next build (or rebuild) will be in a bigger and better chassis, and with better power supply!

Glad to be part of this amazing community!

😀​

 

[Zen Mod]

yes, indeed

 

[tricksters]

Can anyone tell me the usefulness of such a large washer?
They are difficult to find. 😕

 

[pinkfloyd4ever]

It's to spread out the clamping force evenly over the whole (or most) of the area of the MOSFET, so as to optimize heat transfer between the MOSFET and the heatsink.

These washers are called fender washers here in the US, not sure if that helps you find them there in Italy though.

Maybe @peppennino or another Italian DIY Audio member can help you find some in Italy.

 

[JeffYoung]

They'll be easy enough to find once you figure out what they're called there. It's "penny washer" or "repair washer" in the UK....

 

[tricksters]

Thanks for the reply.
I understand, I will have to do more in research.

 

[peppennino]

Hi trickster. They're often used for fenders (parafanghi, not the guitars ) in motorcycles. Ask in hardware stores for M3 X 12mm washers

 

[Zen Mod]

knowing 'Talians, there must be some special name for oversize washers

 

[peppennino]

For sure, MAGGIORATE, like 'talian pinups in 50s

 

[tricksters]

Ok. Thanks for the replies.
I must see in some well-stocked hardware store.
😕

 

[peppennino]

Hope that Soundhappy will not see it 😀