F5X -- the EUVL Approach - The Build Thread - Page 53 - diyAudio
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Old 6th April 2013, 09:32 AM   #521
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Quote:
Originally Posted by ashaw View Post
I am quite sad to hear that you have had problems. You and alazeira (I hope I spelled that right) have seemed to have a problem with the package being sent. As your package was sent by regular mail plus postal insurance I do not have a tracing number, I have got in my files lodgement stubs which I am going to use to try to claim insurance the moment I can open the box that contains them (I just moved again). I have most of enough parts here on my desk waiting to resend both your orders. By way of compensation If you would like I will solder one board each here and test it for you, with the modifications already done, and use this task to make an instructional video for all the rest. Otherwise I can send them as is and wait a little time myself. I will send this by courier at my expense, however it will take me about 1 week to solder and test them. Would you find this acceptable.

I am happy to give you my final PCBs as a part of this at no cost to you, if I need more I will do a small run myself.

P.s I know that you ordered two kits and will of course send you annoy her kit with the completed board, also I will send you two free LEDs on top of those in the kit as these are the hardest parts to obtain and you may find them useful as spares.


He promised in a week that sent my kit ...
A month passed and the man disappeared again.
No reply to mail, do not respond to the message.
Ashaw , not want anything from you!!
You can keep and money, you can keep the 2 kits!
6 months of waiting, I'm tired!
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Old 6th April 2013, 09:43 AM   #522
EUVL is offline EUVL  Europe
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This time I also agree.
Zero response to emails, etc. And too many empty promises.

We have not received the second part of the article, so I shall write a test procedure.
Will take a couple of weeks, since extremely busy at work.

In the meantime, if there is anything we can help, please let us know.
I presume you have protection PCBs already.


Patrick
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Old 6th April 2013, 06:33 PM   #523
APK is offline APK  United Kingdom
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Hi vitalica
I ordered two protection boards and kits with a view to building a second FX5, as I have signed up to the the second GB a 3rd protection kit should be inc in GB2 (Patrick is this the case)
pm me if you want my Spare kit.
Tony
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Old 6th April 2013, 11:41 PM   #524
alazira is offline alazira  United States
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Quote:
Originally Posted by EUVL View Post
This time I also agree.
Zero response to emails, etc. And too many empty promises.

We have not received the second part of the article, so I shall write a test procedure.
Will take a couple of weeks, since extremely busy at work.

In the meantime, if there is anything we can help, please let us know.
I presume you have protection PCBs already.


Patrick
Unfortunately I am in the same situation as Vitalica with regards to Alexis (PCB but no parts). As I understand it, Greg says he has a couple extra kits, so perhaps we could purchase from him.
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Old 7th April 2013, 06:09 AM   #525
EUVL is offline EUVL  Europe
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All components are available from Digikey or Mouser.
So other than the PCB there is no reason why you have to buy a "kit".
The only argument for a GB was to save money.

Or am I missing something ?


Patrick
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Old 7th April 2013, 10:25 AM   #526
alazira is offline alazira  United States
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Quote:
Originally Posted by EUVL View Post
All components are available from Digikey or Mouser.
So other than the PCB there is no reason why you have to buy a "kit".
The only argument for a GB was to save money.

Or am I missing something ?


Patrick
Well, there is also convenience Adding multiple items to carts, multiple vendors, backorders, minimum amounts, as well as the occasional confusion as to exact part#...

In the end, though, I'm still hoping Alexis will come through. I would hate for this to be my first bad experience in dealing with a member on this forum.

Last edited by alazira; 7th April 2013 at 10:33 AM.
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Old 7th April 2013, 02:37 PM   #527
Horio is offline Horio  United States
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Alazira,

Shoot me a PM. I believe I do have a "spare" kit.
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Old 14th April 2013, 06:32 AM   #528
Horio is offline Horio  United States
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When testing the +/- voltage of the PS under load, do we need to temporarily ground the star ground point to get proper readings? The PS with an 8 ohm load is hovering right at 4A, but I'm not getting very useful +/- voltage readings.

Click the image to open in full size.
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Old 14th April 2013, 11:25 AM   #529
EUVL is offline EUVL  Europe
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Each channel has two totally separate Tx secondaries, recitfiers and CRCs (total 4x).
Each of these makes up a single unipolar power supply.
If you now connect the output to a 4R load, you should get very close to 16V 4A.
There is no reason why you cannot test them totally independently of each other.
So I don't really understand your question.

Perhaps you want to draw a schematics, for yourself and those who might help you.


Patrick
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Old 14th April 2013, 03:45 PM   #530
Horio is offline Horio  United States
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I was confusing myself last night, and was measuring across the wrong points. After giving the PS about 10 min to stabilize, I get +/-16.9V and 4.1A through my 8ohm load resistor. You are right, those Fukushima 1ohm resistor do get hot. I am measuring around 140-145 degrees C in my setup.
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