F5_XT

Hello,

Nice to be back.... A long time ago in this galaxy I lost the F5X from Patrick... I had to move, and did pack all my projects...; 14 years later 'I'm back'...
and be gentle it's my first try with EasyEDA to draw a board... I hope I didn't make any mistake(s). I will just make a pair of boards to build 2 mono-blocks.
I decided to start with a quarter of the schematic and replicate it 3 times to get to the final version. It's just a thread to share the evolution of the project!

F5_x_EasyEDA | Final Version | Allan Dupont | Flickr

Alain.

I'd like to rename the thread 'F5-XT' following the advice of EUVL 😉
 
Last edited:
Hello,

Nice to be back.... A long time ago in this galaxy I lost the F5X from Patrick... I had to move, and did pack all my projects...; 14 years later 'I'm back'...
and be gentle it's my first try with EasyEDA to draw a board... I hope I didn't make any mistake(s). I will just make a pair of boards to build 2 mono-blocks.
I decided to start with a quarter of the schematic and replicate it 3 times to get to the final version. It's just a thread to share the evolution of the project!

F5_x_EasyEDA | Final Version | Allan Dupont | Flickr

Alain.
 
And a few

Sorry, I'm not used to attach picts... :goodbad:
 

Attachments

  • F5X_Quarter 1.png
    F5X_Quarter 1.png
    315.6 KB · Views: 483
  • F5X_Quarter 2.png
    F5X_Quarter 2.png
    366.9 KB · Views: 439
  • Q3.png
    Q3.png
    197.4 KB · Views: 472
  • Quarter 1.png
    Quarter 1.png
    199.1 KB · Views: 484
Thanks Patrick,

I did verify the Drain/Source of the mosfets, I did swap Drain/Source of the 2SJ74, it's fixed. (I haven't already ordered the boards...)

( In the meantime I am working on the Ultra High MC/MM phono of Wyn Palmer )

And its OK about the name I'll change it to 'F5-TX'

For the mosfets I have pairs of IRFP240/IRF9140 and 2SK1058/2SJ162...

About the D5's, I want to try Nelsons Turbo version... Just curious!

Thanks for your advise,

Alain.
 

Attachments

  • F5-TX Version 1.02.jpg
    F5-TX Version 1.02.jpg
    236.6 KB · Views: 151
Last edited:
> For the mosfets I have pairs of IRFP240/IRF9140 and 2SK1058/2SJ162...

You will find that 2SK1058/2SJ162 will give you rather high distortion.
Read Nelson's article on the F7.
Maybe that is what you want to build instead.

> About the D5's, I want to try Nelsons Turbo version... Just curious!

Which is why I suggested the name F5T-X.


Patrick
 
New version...

A new design version V2 for this F5-XT, I am currently testing the Excicon ECW20P20/P20 on a 'F Seven Balanced' prototype. The sim's looks real good!
I will build 2 monoblocs and plan to be able to replace the CI to use either a F Seven or a F5-XT on the same power supply...
 

Attachments

  • IMG_1711.jpg
    IMG_1711.jpg
    629.8 KB · Views: 137
  • Capture d’écran 2021-08-04 à 17.04.30.png
    Capture d’écran 2021-08-04 à 17.04.30.png
    820.8 KB · Views: 156
  • Capture d’écran 2021-08-04 à 17.04.47.png
    Capture d’écran 2021-08-04 à 17.04.47.png
    933.8 KB · Views: 151