F5X -- the EUVL Approach - Page 62 - diyAudio
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Old 14th December 2011, 04:07 PM   #611
EUVL is offline EUVL  Europe
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Some further update :

Since the amp and regulator PCBs are working, Dave is preparing to release the standard configuration schematics in the next days.
He also suggested using a more professional vendor for the Case GB Beta PCB sets, as I am sure you all want the very best.
So he is making enquiry with his own vendor in the US.

As such, the case will only be shipped with the free CRC boards from us.

Alexis has also finished testing the protection board which is fully functional.
We found a small layout bug which is now rectified, and new test boards are ordered.
As soon as they are available, Alexis will test them again, and then we can release those as well.

So luckily towards year end, my tasks are almost complete, and it is time that you guys take over ......




Patrick
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Old 14th December 2011, 06:53 PM   #612
RCruz is offline RCruz  Switzerland
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hope I can start building one in January
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Old 14th December 2011, 06:55 PM   #613
EUVL is offline EUVL  Europe
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We'll try our best to ship as soon as we can.
But Xmas time is always a bit busy for everyone, including the shipping companies.
But certainly before Chinese New Year.


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Old 17th December 2011, 11:32 AM   #614
EUVL is offline EUVL  Europe
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I have been asked about where to get F5X PCBs.

The F5X Case GB subscribers will get Beta PCBs from fitzfish (or us if he is too busy). See post #611.
These Beta boards (incl regulator & protection) fits the case, & are probably not useful for others.

The F5X amplifier boards Gerber files will be released to the DIYA forum spring next year.
It is then up to them as to when they would like to have them in their online shop.

This was the agreement as per October 2010.


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Old 17th December 2011, 04:11 PM   #615
qusp is offline qusp  Australia
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still hoping for a regulated option for non case subscribers, i suppose i can make up my own pcbs once the schematics are made public; IF they are made public and not just the amp pcbs that is
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Old 17th December 2011, 04:14 PM   #616
EUVL is offline EUVL  Europe
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The schematics will be made public.
It's just a MOSFET follower with 2x RC filter from the rectifier.
Nothing special.

The PCBs are designed to fit the heat sink.
If you use similar sinks, you can also use the PCB.

There will be a new version of the protection board (PCB) for general use.
But that will take time.


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Last edited by EUVL; 17th December 2011 at 04:16 PM.
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Old 18th December 2011, 04:23 AM   #617
qusp is offline qusp  Australia
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ahh i see, so just a little local FB to keep the voltage more stable? or is there some sort of reference? yeah i already have the same sinks, but not drilled, i bought some at the same time as sinks for my AJX.

i didnt think it would be something top secret, but thought perhaps you might be keeping it for your kit products. i'm glad you are releasing them though, so i can use the matched fets for a regulator as planned, rather than finding an amp project for them.

no worries on timing for everything, i have my hands full already, but nice to know there is stuff 'in the pipe' so to speak.
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Old 27th December 2011, 07:34 PM   #618
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I know everyone has been waiting on technical details. The release schematics and the bills of materials for EUVL's F5X are here-

The build thread is in progress and will be posted as soon as the rest of the performance testing is complete, just a short few weeks away. We should also have some additional quotes for the PCBs back in the next week so that Patrick can make decisions about the PCBs for the case groupbuy participants.

Enjoy!
Dave
(file size limitations required splitting the amplifier BOM into three pieces)

"Edit : To avoid confusion BOMs are now only available here : F5X -- the EUVL Approach - The Build Thread"

F5X -- the EUVL Approach - The Build Thread
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Old 28th December 2011, 03:43 AM   #619
EUVL is offline EUVL  Europe
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Dave,

Many thanks for posting, for the hard work over the past year despite private circumstances,
and all the testing and excellent results that is to come in the Build thread.




Patrick
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Old 28th December 2011, 03:55 AM   #620
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Wonderful !!!

One question for Patrick and the test team. I heard your opinion aganist termistor for compensation. But what about the limiter ? In the F5 forum, purist leave it out, but you seem to have a neutral opinion about that. Am I correct ?

Davide
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