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Old 3rd June 2003, 03:44 AM   #1
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Cool aleph-what number i dont know whether 4 or 5

after hard work , at last i finished my dear aleph-what
it is too hot , but i can touch it for 5 second .thanks to nelson for giving me so great circuit i can build.
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Old 3rd June 2003, 03:47 AM   #2
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Default inside

look inside
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Old 3rd June 2003, 03:49 AM   #3
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Default thanks mark finnis

without his help i cant do it
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Old 3rd June 2003, 03:51 AM   #4
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Default hard work

i am too tired, it is too heavy
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Old 3rd June 2003, 03:56 AM   #5
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Default mess desk

i used a big transformer which is 1000va, second coil output 30vac, after rectifier output 40 vdc althought it flow 3A current
. i used 3 pair of irfp250 , in shanghai of china it is much cheaper
than irfp240.
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Old 3rd June 2003, 04:00 AM   #6
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Default hard work

Quote:
Originally posted by john-china

too tired, ...
Nice work!
Nice music will comfort you, soon.

By the way, if you got the components in Shanghai,
could I know where (address) you got? Thanks.

JH
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Old 3rd June 2003, 04:09 AM   #7
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Default to jh6you

in shanghai , beijing east road (ke ji jing cheng) and si-chuang middle road and qiu jiang road , there is some electricity component store , much cheaper than abroad.
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Old 3rd June 2003, 04:12 AM   #8
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Nice and clean work, congratulations!!!

It looks more like an Aleph 5

Monoblocks I see
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Old 3rd June 2003, 04:52 AM   #9
moe29 is offline moe29  United States
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check out the cool Son of Zen resistors just hanging
out on the table... probably good for 2 watts or so

i guess the ground trace that goes all the way around
your front end board isn't giving you any trouble?

nice looking amp!
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Old 3rd June 2003, 05:11 AM   #10
BrianGT is offline BrianGT  United States
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Quote:
Originally posted by moe29
check out the cool Son of Zen resistors just hanging
out on the table... probably good for 2 watts or so

i guess the ground trace that goes all the way around
your front end board isn't giving you any trouble?

I assumed that the large power resistors were used for a dummy test load.

As for the ground trace going around, Mark Finnis did it in one of the first DIY Aleph amplifiers a long time ago in his pcb layout without problems:

http://www.passdiy.com/gallery/aleph4-p1.htm
http://www.users.bigpond.net.au/mefinnis/index.htm

I have seen others do the same layout also.

--
Brian
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