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Old 27th November 2010, 05:18 PM   #431
Phill is offline Phill  France
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Aleph X

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with my thanks to Mr. Nelson Pass, and any community involvement

Phill
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Old 27th November 2010, 05:27 PM   #432
Zen Mod is offline Zen Mod  Serbia
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hey , Woodie - what's wrong having some decent number of holes in top and bottom plates ?
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Old 27th November 2010, 05:56 PM   #433
anilva is offline anilva  India
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Default My F5 clone effort

Hi,

After more than 6 months, I have managed to bring the F5 clone project to a closure. Very satisfied with the outcome in terms of sound quality and experience.

Totally new level of sonic experience listening to this amp through my FE206E back loaded horn fullrangers. Though I am getting used to signature F5 clarity in the middle and upper frequencies and slightly weaker bass.

The entire design is fully to the spec and no mods. Set up was a breeze. Heatsinks are extra large (two of them coupled by a copper flat for each side). After 2.5 hours the amp gets moderately warm and I can touch the heatsink for a long time without burning myself.

Thanks to Mr. Pass for this great design and all the experts on this forum, whose posts have helped me immensely in executing this well.

Cheers.
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Old 1st December 2010, 09:54 PM   #434
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Default F5 clone

I reused a Sumo Andromeda case for my F5. I use a 1/4" 4" x 8" block of
copper as a heat spreader on the heatsinks and used high preformance
insulators. I used the case from a bad power stablizier for my external
power supply. The external power supply has a pair of 40,000uf caps then
in the amp case I use a pair of 15,000uf caps for each chanel decoupled
from the external power supply with .1ohm resistors. Thanks Nelson for
letting us have this fine design!
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Old 2nd December 2010, 04:38 AM   #435
routhun is offline routhun  United States
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Default RE: My F5 clone effort

Hi Anil,

great work, I bought the F5 PCBs long time back but never had chance to finish it. Given the parts and resources availability in India, your build is great. Just one comment, tidy up the internal wiring, route the wires along the edges it looks even greater then. Have fun.

Thanks,
Routhun
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Old 2nd December 2010, 04:48 PM   #436
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Quote:
Originally Posted by woody View Post
I reused a Sumo Andromeda case for my F5. I use a 1/4" 4" x 8" block of
copper as a heat spreader on the heatsinks and used high preformance
insulators. I used the case from a bad power stablizier for my external
power supply. The external power supply has a pair of 40,000uf caps then
in the amp case I use a pair of 15,000uf caps for each chanel decoupled
from the external power supply with .1ohm resistors. Thanks Nelson for
letting us have this fine design!
Show us the porn, we all want to see that copper
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Old 3rd December 2010, 07:39 AM   #437
anilva is offline anilva  India
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Quote:
Originally Posted by routhun View Post
Hi Anil,

great work, I bought the F5 PCBs long time back but never had chance to finish it. Given the parts and resources availability in India, your build is great. Just one comment, tidy up the internal wiring, route the wires along the edges it looks even greater then. Have fun.

Thanks,
Routhun
Thanks. I agree, I need to tidy up the wiring. Now that the amp has stabilized, I will use some cable ties.

Cheers.
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Old 3rd December 2010, 09:59 AM   #438
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Quote:
Originally Posted by Salomon View Post
Under the capacitors you find the two 600VA transformers.
You can see it on the picture.
The complete weight is 51,4 kg

The torobars are cooled because the high current (7A).
They are thermally coupled with the U-shaped Heatsink. You see it grey between coils and the Heatsink.
The black heatsinks over the coils are for the softrecovery rectifiers. They need good cooling.
What an amazing build! I was just looking for inspriration how to build my ExtremA amp and Salomon's pass amp seems to be a benchmark.

Too bad the website of Salomon is down? Is it coming online again with some additional pictures how you build the amp?

Scanspeakman
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Old 3rd December 2010, 10:21 AM   #439
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If you're contemplating Torobars for the PS of the ExtremeA, read William's WuffWaff thread on his Aleph-X power supply.

(provided you haven't already)
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Old 8th December 2010, 10:08 AM   #440
DIMDAS is offline DIMDAS  Greece
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Some pics of my new F5 amp ...

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