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Old 23rd August 2012, 11:32 AM   #1321
Zen Mod is online now Zen Mod  Serbia
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yup

put mains rated cap across contacts
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Old 23rd August 2012, 11:52 AM   #1322
wengtech is offline wengtech
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do you mean X2 Line Caps?
okay, what value?
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Old 23rd August 2012, 12:39 PM   #1323
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10-100nF
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Old 23rd August 2012, 12:47 PM   #1324
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or use the encapsulated R+C snubbers that are sold specifically for switch suppression.
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Old 28th August 2012, 09:39 PM   #1325
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Default Aleph J: Phase 1

I never thought I would be able to do this myself, but it was easier than I had expected. I will have a while to wait to see if I got everything done properly, because I have lots to do before I can test the pcb.

Next phase is the enclosure. I have to figure out how to drill and thread holes in the heat sinks. Never done that before, so should keep me busy for a while.
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Old 28th August 2012, 09:42 PM   #1326
buzzforb is offline buzzforb  United States
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Your gonna love it. Very romantic amplifier. Still maybe the best I have heard 500hZ and up. Then again, I haevnt heard but a few
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Old 28th August 2012, 09:56 PM   #1327
albertNL is offline albertNL
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Quote:
Originally Posted by buzzforb View Post
Your gonna love it. Very romantic amplifier. Still maybe the best I have heard 500hZ and up. Then again, I haevnt heard but a few
I have an original Aleph 3. It is beautiful and is powering mid/hi on my Magnepan MG3A's.
I am looking forward to comparing the Aleph 3 with the Aleph J. I do worry though, that the J might run out of steam. I decided to build to the original J specifications (except slightly higher rails from 21V secondaries). The Maggies are 4 Ohm and the standard J does not like 4 Ohm.
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Old 28th August 2012, 10:06 PM   #1328
buzzforb is offline buzzforb  United States
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Brian GT has boards that allows for expansion, I ran three output pairs in monoblocks, biased high.
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Old 28th August 2012, 10:11 PM   #1329
albertNL is offline albertNL
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I am using Peter Daniel boards. They also allow 3 pairs.
I currently only have 8 matched FETs, so will try stock first. Also, I am using 2 x 225VA toroids (each with 2 x 10.5V secondaries, so one will be used for V+, the other for V-) so I cannot bias very high.
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Old 1st September 2012, 04:48 AM   #1330
coffin is offline coffin  Taiwan
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My Arch Nemesis using IXTH6N50D2....
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