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Aleph 3 Upgrade
Aleph 3 Upgrade
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Old 28th April 2018, 09:36 AM   #21
juanitox is offline juanitox  France
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Quote:
Originally Posted by KatieandDad View Post
Have you thought about upgrading the Aleph 3 to an Aleph 4. It wouldn't be a simple upgrade but the gains are enormous, especially in the extra headroom that the Aleph 4 has.
no , i want to keep the spider chassis of the aleph 3 , and as i have an high efficiency driver 30W is big enough. my only goal is the fun and to beat my VFET Sony 4650 ( power section only)
my stock aleph3 doesn't make it like that , sound darker and congested
so i want to make a full recap and and try different input transistors to change that.
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Old 28th April 2018, 09:50 AM   #22
Zen Mod is offline Zen Mod  Serbia
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Aleph 3 Upgrade
use 2SJ109BL (or 2SJ109V) if you have them , strictly per Papa's instructions
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Old 28th April 2018, 11:55 AM   #23
Dennis Hui is offline Dennis Hui  Canada
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If you can't get the duals, just get matched pairs of 2sj74BL or 2sj74V.
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Old 28th April 2018, 12:01 PM   #24
Zen Mod is offline Zen Mod  Serbia
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already covered , up

we are probably talking about 2SJ109 from habit
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Old 28th April 2018, 04:23 PM   #25
juanitox is offline juanitox  France
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something none covered up ? is the two zener Z101 / Z102 ( anti_spik) are also usefull with Jfet input ?
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Old 28th April 2018, 04:41 PM   #26
Zen Mod is offline Zen Mod  Serbia
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no need for those with JFet input
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Old 28th April 2018, 05:21 PM   #27
juanitox is offline juanitox  France
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no need for those with JFet input
i drink your words
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Old 1st May 2018, 03:36 PM   #28
juanitox is offline juanitox  France
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i have just finished recaping the power supply with 33000uf 25V cornell dubillier instead of the 22000uf . as it impossible to make a CRC or CLC with the stock power supply PCB . is it worth to by pass each rail with a 20 or 30uf MKP or just leave it at is
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Old 1st May 2018, 05:05 PM   #29
coolnose is offline coolnose  Europe
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Bet ZM will propose "his" Philips MKC 1uF

Same diameter caps ? What does it look like before/after ?

Last edited by coolnose; 1st May 2018 at 05:10 PM.
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Old 1st May 2018, 05:13 PM   #30
Zen Mod is offline Zen Mod  Serbia
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angle of green is much greater , when you succeed squeezing few motor-run caps in there

so , it's worth it

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