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Old 11th November 2013, 02:32 PM   #2321
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Quote:
Originally Posted by emyeuoi View Post
Is a dual mono V2 with 2 PSU and 2 Trasformers 600VA. Here some pictures during the building. I hope you enjoy the pictures as I enjoy the sound
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Originally Posted by emyeuoi View Post
I build my F5T V2 being re-located in Korea.... what not easy but here is the result
This is Super Like...
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Old 11th November 2013, 07:11 PM   #2322
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Originally Posted by guciokielce View Post
F5 from Poland
I can only add that the construction took more than a year, all matched transistors and resistors, capacitors have not found such as the original so I used the Nippon Chemi-Con 33000uf, 400VA transformer.

I built a B-1, but did not give all the power of F5, so I decided to JC-2 from ebay.

Now I do not know how to build a model ...
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Old 11th November 2013, 08:20 PM   #2323
emyeuoi is offline emyeuoi  Italy
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Originally Posted by bcmbob View Post
Enrico, did you build a regular F5 before you made this one. If you did, can you describe the difference in sound between the two?

Your build is top shelf.
Thanks Bob
About the F5 I don' t build it, so I can't compare the two

Ciao
Enrico
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Old 11th November 2013, 08:24 PM   #2324
emyeuoi is offline emyeuoi  Italy
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Originally Posted by abadsantos 7 View Post
This is Super Like...
Thanks
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Old 12th November 2013, 04:05 AM   #2325
WalterW is offline WalterW  Netherlands
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Originally Posted by emyeuoi View Post
Is a dual mono V2 with 2 PSU and 2 Trasformers 600VA. Here some pictures during the building. I hope you enjoy the pictures as I enjoy the sound
Wow emyeuoi, very, very nice build
your wiring and positioning is so well thought ...
Love the frontpanel

Enjoy the sound, Walter
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Old 12th November 2013, 06:05 AM   #2326
emyeuoi is offline emyeuoi  Italy
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Wow Walter,

you have no idea how much your works has inspired my creation. I decided to make the F5T V2 after seeing the beautiful pictures of your V3.

Your words make me really pleased.

Thanks and Regards,

Enrico
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Old 12th November 2013, 10:06 AM   #2327
bcmbob is offline bcmbob  United States
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Originally Posted by guciokielce View Post
.........I built a B-1, but did not give all the power of F5, so I decided to JC-2 from ebay....
That's the exact combo I have been using for the past fer weeks. Coming directly off the DAC, with all audio drivers on my PC (JRiver Media Studio with flac files) turned off, the F5 is just under what I like for some selections. The JC-2 provides more than enough gain and at high quality. I've been advised that the 02 headphone amp/pre is another great alternative that passes a super clean signal to the Pass offerings - plan to try one in the near future.

The other obvious alternative for getting just a bit more SPL from the F5 builds is a set of speakers with higher efficiency than the Sunflowers I'm using now. This may not be the appropriate thread, but I've been thinking about asking the members of the F5 community for recommendations for a DIY speaker that helps the amps sound just a little bigger. It's my understanding the highly regarded B-1 would then be able to do it's magic and retain the KISS approach NP has at the base of his designs.

I hadn't planned on doing much more speaker building, but the ACA, F5 and BA-3 experiences I've had this past year could push me back into the wood-shop for a shot at better match for these amps.
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Old 13th November 2013, 03:01 AM   #2328
crcook is offline crcook  United States
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Here is the final pic of my F5 before I button it up and move to the listening room. DIY boards, 4U case, handles. Added hole for blue LED power light.

Bias holds steady after playing all day. Heat sink is about 22degC above ambient, all and all a beautiful and stable design. Thanks Nelson and fellow diy'ers.
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File Type: jpg F5.jpg (719.5 KB, 660 views)
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Old 13th November 2013, 06:49 AM   #2329
WalterW is offline WalterW  Netherlands
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Quote:
Originally Posted by emyeuoi View Post
Wow Walter,

you have no idea how much your works has inspired my creation. I decided to make the F5T V2 after seeing the beautiful pictures of your V3.

Your words make me really pleased.

Thanks and Regards,

Enrico
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Old 13th November 2013, 06:51 AM   #2330
WalterW is offline WalterW  Netherlands
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Originally Posted by crcook View Post
Here is the final pic of my F5 before I button it up and move to the listening room. DIY boards, 4U case, handles. Added hole for blue LED power light.

Bias holds steady after playing all day. Heat sink is about 22degC above ambient, all and all a beautiful and stable design. Thanks Nelson and fellow diy'ers.
Looks very nice ! Any pics of the inside?

Walter
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