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Aleph J illustrated build guide
Aleph J illustrated build guide
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Old 1st October 2013, 04:10 PM   #121
WalterW is offline WalterW  Netherlands
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Aleph J illustrated build guide
stupid, stupid me!
I discovered it myself, there is no jumper in R27...Luckily you can solder in the jumper from above
It's all ok now...can bias the amp, can set the offset to zero.

Lessons learned: the higher the resistance, the higher the bias
with a maximum bias of 1.34 Ampere.. It's nice that Pa limited it to this value, otherwise I would have
Thanks Jim and ZM. Now going to build the second channel so I can listen in stereo.
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Old 1st October 2013, 10:10 PM   #122
PJN is offline PJN  United States
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Hi Guys,

I have an F5 that I powering a set of Jordan JX92S in back horns with. Very clean sound. But now that the Aleph J boards are available I am very tempted to install a set into my F5 chassis like I saw someone doing here. Can anyone here who has heard both comment on the sonic differences that they have experienced between the F5 and AlephJ. Before I jump in It would be nice to have some info on what to expect, and if I could expect a noticibly difference between the two. I'm guessing that this has been asked before, but I could not uncover any answers using the search function.

Thanks,

PJN
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Old 1st October 2013, 10:19 PM   #123
Zen Mod is offline Zen Mod  Serbia
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Aleph J illustrated build guide
with F5 , you'll see cockroach wandering behind Violin player's feet ;

with J , cockroach will smile on you ......

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Old 1st October 2013, 10:33 PM   #124
6L6 is offline 6L6  United States
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Aleph J illustrated build guide
That is the best description I've ever heard!!

I like both amps very much.

The Aleph is warmer without losing any detail. A bit more like a perfect tube amp. The F5 is very, very detailed, but not strident. The A has a bit less control in the bass, but not 'flabby' in any way.

The Aleph runs quite a bit hotter.

Build it, try it. You won't be disappointed.
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Old 2nd October 2013, 01:04 AM   #125
PJN is offline PJN  United States
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Alright I'm sold, warmer is better, another Aleph J on the way. Any chance of another group buy for the parts coming along soon ?

PJN
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Old 2nd October 2013, 02:24 AM   #126
6L6 is offline 6L6  United States
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Aleph J illustrated build guide
If I can source the Jfets, yes.

I might just buy a bunch of matches from Spencer, but the kit would be at least $20 more than I charged last time....

Once I get the PSU kit taken care of I will look into a 2nd round of Aleph J kits.
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Old 2nd October 2013, 02:37 AM   #127
PJN is offline PJN  United States
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Count me in then, they're the most important part of the build.

PJN
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Old 2nd October 2013, 02:39 AM   #128
jrebman is offline jrebman  United States
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What ever happened to the big announcement of some new parts from the diy store?

-- Jim
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Old 2nd October 2013, 02:53 AM   #129
sakellogg is offline sakellogg  United States
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Quote:
Originally Posted by jrebman View Post
What ever happened to the big announcement of some new parts from the diy store?

-- Jim
j-fets in the store now!
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Old 2nd October 2013, 02:54 AM   #130
12B4A is offline 12B4A  United States
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8 pieces of LSJ74 ULTRA LOW NOISE SINGLE P-CHANNEL JFET - Parts
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