F5X -- the EUVL Approach - The Build Thread - Page 17 - diyAudio
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Old 31st October 2012, 08:59 AM   #161
NicMac is offline NicMac  Italy
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Quote:
Originally Posted by Nikon1975 View Post
Practically it's not a big deal, we just have to stock few resistors of these values, costs around 2 euros.
D.
Already have these
They are the same series as the 5R1 part selected for the build by Patrick.
I was actually thinking about the 2SK170GR....

Last edited by NicMac; 31st October 2012 at 09:01 AM.
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Old 1st November 2012, 06:17 PM   #162
Horio is offline Horio  United States
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Originally Posted by EUVL View Post
> Where is that F5X Pre?

On my table, waiting to be built.


Patrick
I like the sound of that. My F5X is going to want a companion.
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Old 1st November 2012, 06:28 PM   #163
EUVL is offline EUVL  Europe
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By the time you have the F5X built, tested, and playing music, we should be able to show you pictures and measurements.

We already have PCBs, matched devices, drawing sets for the cases, .....just about everything other than mechanical parts.
Just need to build a prototype and do some measurements / listening.

Oh, BTW, it will be the same matching width and style as the F5X Power Amp, as you would expect.
It will also come in two cases, as all high end preamps -- a preamp case and a PSU case.

The Preamp case has furthermore 5 separate, fully shielded compartments :

1. Source selection & attenuation
2. Preamp Left
3. Preamp right
4. Control signal wiring
5. Manual control / remote / display

So much for now.




Patrick
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Old 16th November 2012, 10:05 AM   #164
heinz1 is offline heinz1  Europe
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While comparing the official schematics and the corresponding BOM shown in the first two .pdf-files of post #4, I noticed a small discrepancy:

In the schematics and on the PCBs we have, MOSFET Q designators are Q1,Q6,Q15,Q20. In the corresponding BOM, Q6 is called Q8.
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Old 16th November 2012, 11:18 AM   #165
EUVL is offline EUVL  Europe
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Thanks for the alert.
Dave will do an update when his has a minute to spare.


Patrick
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Old 16th November 2012, 12:45 PM   #166
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when you degen your j74 Is there a place left on pcb amp for a 5 R resistor
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Old 16th November 2012, 01:08 PM   #167
EUVL is offline EUVL  Europe
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Without saying.


Patrick
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Old 16th November 2012, 01:40 PM   #168
CeeVee is offline CeeVee  Portugal
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Quote:
Originally Posted by EUVL View Post
By the time you have the F5X built, tested, and playing music, we should be able to show you pictures and measurements.

We already have PCBs, matched devices, drawing sets for the cases, .....just about everything other than mechanical parts.
Just need to build a prototype and do some measurements / listening.

Oh, BTW, it will be the same matching width and style as the F5X Power Amp, as you would expect.
It will also come in two cases, as all high end preamps -- a preamp case and a PSU case.

The Preamp case has furthermore 5 separate, fully shielded compartments :

1. Source selection & attenuation
2. Preamp Left
3. Preamp right
4. Control signal wiring
5. Manual control / remote / display

So much for now.




Patrick
Don't tell me it's from a solid block of Alu Patrick......
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Old 16th November 2012, 01:48 PM   #169
EUVL is offline EUVL  Europe
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If you are willing to pay, it is not a problem for us, technically.




Patrick
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Old 16th November 2012, 01:53 PM   #170
CeeVee is offline CeeVee  Portugal
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Quote:
Originally Posted by EUVL View Post
If you are willing to pay, it is not a problem for us, technically.




Patrick
U trying to get me in trouble here Patrick ?.....I know you cannot resist a technical challenge hehe

Let's keep this sensible price wise.....

Anyway I have my UGS to enjoy until i see what u have dreamed up....It's almost inevitable I'll build it ofcourse!

Warming up my CNC already hehe

Last edited by CeeVee; 16th November 2012 at 02:04 PM.
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