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mstomaso 24th July 2013 05:28 PM

Newbie Questions About Aleph J
I'd like to build an Aleph J.

When I search to find an amp schematic, PS schematic, and BOM, I get so many hits it's overwhelming.

Can someone point me in the right direction?


Mike T.

Bones13 24th July 2013 05:37 PM

There are boards for pre-order in the DIY Audio store for the amp. With a build guide to come. The thread about this is the one about Aleph J for the universal mounting system they are using at the DIY Audio Store.

I plan to work this further after I build the ACA from the kit.

6L6 25th July 2013 12:07 AM

Mike - Yes, the link Bones provided is all that there is, for the moment. There will be a build guide before the end of summer.

12B4A 25th July 2013 12:32 AM

Aleph J BOM Rev C

This was also answered in your previous thread.

mstomaso 25th July 2013 12:47 AM

Thanks for the info. I found the BOM and schematic.

Also, I apologize for not remembering my previous post. I am old, and I have slept since then. These days I make new friends every day and I can hide my own Easter eggs.

Question: Is there any current production substitute for the 2SJ74. I'm sure this is not an original question.......

6L6 25th July 2013 01:49 AM

Mike - No, there isn't. There are still a couple good options, Check your PM and we can discuss good options.

12B4A 25th July 2013 02:09 AM


Originally Posted by mstomaso (
Also, I apologize for not remembering my previous post.

No apology needed. Building these amps is an Easter egg hunt while riding a bull in the middle of the jungle.

Bones13 27th July 2013 11:46 AM

The boards have gotten to the warehouse, and my JFets are on the way from Hong Kong (thanks Spencer). Hopefully those are the hard parts, I will be collecting the rest of it slower, as my Aleph J build is after a couple of other projects.

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