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Aleph J illustrated build guide
Aleph J illustrated build guide
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Old 30th November 2018, 06:10 AM   #3161
RafaPolit is offline RafaPolit  Ecuador
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Which "Ds" would those be? Thanks for expanding on your findings.

Rafa.
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Old 2nd December 2018, 03:47 AM   #3162
aljordan is offline aljordan  United States
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When setting the initial resistance of the 100k trim pot, do I measure on pins 1 and 2 of the pots?

Thanks!
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Old 3rd December 2018, 02:48 PM   #3163
kstagger is offline kstagger  United States
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Quote:
Originally Posted by aljordan View Post
When setting the initial resistance of the 100k trim pot, do I measure on pins 1 and 2 of the pots?

Thanks!
Wiper is tied to one of the outer legs - I measured across the pot, pins 1 & 3. Note there is some "lag" when measuring, so be patient.
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Old 6th December 2018, 03:00 PM   #3164
aljordan is offline aljordan  United States
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Hi again,

A question regarding the power mosfets that come in the Aleph J transistor kit from the DIY Audio Store. There are four pairs included, two of the pairs have black writing on the outside of the foil wrap, and two of the pairs have blue writing. Does the color of the writing have any significance I should be aware of?

Thanks in advance once more!
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Old 7th December 2018, 08:49 AM   #3165
astromo is offline astromo  Australia
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Quote:
Originally Posted by aljordan View Post
Hi again,

A question regarding the power mosfets that come in the Aleph J transistor kit from the DIY Audio Store. There are four pairs included, two of the pairs have black writing on the outside of the foil wrap, and two of the pairs have blue writing. Does the color of the writing have any significance I should be aware of?

Thanks in advance once more!
The store's listing provides an explanation of the significance of the numbers doesn't it?

Give it a look and see how you travel.
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Old 7th December 2018, 02:26 PM   #3166
teodorom is offline teodorom  Italy
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Hi, sorry for the stupid questions, but it's very hard to find the answer in 317 pages .
What could be the final build price of the "Aleph J"? Excluding the case.
I'm a little worried by the heat that needs to be dissipated.
Me I already have a 3U "Pesante Disipante" (modu)
Click the image to open in full size.
and I wonder if I can use it.
Many thanks
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Old 7th December 2018, 03:06 PM   #3167
Russellc is offline Russellc  United States
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Aleph J illustrated build guide
Quote:
Originally Posted by teodorom View Post
Hi, sorry for the stupid questions, but it's very hard to find the answer in 317 pages .
What could be the final build price of the "Aleph J"? Excluding the case.
I'm a little worried by the heat that needs to be dissipated.
Me I already have a 3U "Pesante Disipante" (modu)
Click the image to open in full size.
and I wonder if I can use it.
Many thanks
My guess is for the Aleph J that isn't enough heatsink, but would work with a Zenmod style babysitter, which you can search but is essentially an Amp stand with cooling fan mounted underneath.

Russellc
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Pass B-1 preamp, Pass BA3 preamp, Pass F-5 Amp, Pass F-6 Amp, Pass BA-3 Amp, Pass M-2 amp, Pass Aleph J amp, Pass Pearl 2 Phono pre Tekton Enzo, Altec A7, Econowave JBL 2235H & B&C CD
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Old 7th December 2018, 03:14 PM   #3168
Russellc is offline Russellc  United States
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Aleph J illustrated build guide
As to cost, you just add up how much it costs to get everything listed on the BOM. This price will vary depending on how much stuff you already have, and where you are sourcing it from, and delivery costs.

Delivery can vary depending not only on location, but how many separate suppliers/orders you make.

As to the size of the thread, it isn't bad at all compared to say, the F5 thread. Get a notepad, read all of 6l6's build guides, at least the one on the Aleph J. As you read build guide, questions will rise. Then skim the Aleph J threads, all if them, and make notes on interesting parts. Like part changes, later circuit changes, problems and solutions others had. You will find much of the reading is banter, which is easy to skim past. In the end, you will have a list of post numbers and what they address.

Since these are not full kits, except the ACA amp there is a lot of reading and learning here. I have no formal electronic training, just learned as I pointed out above. Simply put, there is a lot of reading to be done!!!

Hope that helps

Russellc
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Last edited by Russellc; 7th December 2018 at 03:21 PM.
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Old 7th December 2018, 03:55 PM   #3169
teodorom is offline teodorom  Italy
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Thanks,
a rough answer would be OK.
Let us assume that I have nothing (except the cabinet), and that I shall buy everything from Digikey.
Any idea for what regards the size of the surface of the dissipation area?
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Old 7th December 2018, 04:45 PM   #3170
6L6 is offline 6L6  United States
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Aleph J illustrated build guide
I’ve always estimated the cost of the Aleph J at about $700, but that is including the deluxe chassis.

Chassis is usually 1/3 -1/2 of the cost.
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