DIEFET: Jfet simulation of the Diezel VH4

surfingsfun · Post by **surfingsfun** » 19 Jul 2009, 08:19

PM'd!

ech0es · Post by **ech0es** » 19 Jul 2009, 10:04

pictures !

surfingsfun · Post by **surfingsfun** » 19 Jul 2009, 10:20

Looks good, any current samples?

ech0es · Post by **ech0es** » 19 Jul 2009, 10:38

it's the 1.21 so you can listen all the sample already posted

surfingsfun · Post by **surfingsfun** » 19 Jul 2009, 11:03

Ok, just curious. I don't imagine each one sounds identical

cricky · Post by **cricky** » 22 Jul 2009, 21:31

interesting.. im going to check this one out.. thanks a lot

commission de surendettement
- commission de surendettement, vous pouvez demander un dossier de surendettement.

kabi · Post by **kabi** » 29 Jul 2009, 09:04

New looks, finally

It's far from perfect but as good as it gets for a first attempt (ps. how insanely difficult is to make the paint job perfect??)

The voltage doubler gives a nice 17.10v with the FETS biased at 8.50v and this thing sounds really loud after experimenting a little, removing parts C33 and R32 and replace them with jumpers (though i think it also altered the tone a bit, but that may be just me

)

More samples coming up in the near future

kantul · Post by **kantul** » 29 Jul 2009, 10:04

Nice finishing!
Is it gold color?

kabi · Post by **kabi** » 29 Jul 2009, 10:35

it's chrome

kupervaser · Post by **kupervaser** » 29 Jul 2009, 10:57

What size enclosure is this and can you post the inside pictures?

THanx

kabi · Post by **kabi** » 29 Jul 2009, 11:05

kupervaser wrote:What size enclosure is this and can you post the inside pictures?

THanx

box size is 145x120x39, actually it must be same size as yours according to the pics you've uploaded

i'm travelling tomorrow so i will post some gut pics and samples as soon as i get back home

ech0es · Post by **ech0es** » 29 Jul 2009, 16:07

well done!

we wait the samples

surfingsfun · Post by **surfingsfun** » 29 Jul 2009, 17:05

ech0es wrote:well done!

we wait the samples

is yours sold now?

ech0es · Post by **ech0es** » 29 Jul 2009, 17:39

not yet, i reinstalled it on my pedalboard for a week to be sure and yes, i want to sell it!

surfingsfun · Post by **surfingsfun** » 30 Jul 2009, 14:57

ech0es wrote:not yet, i reinstalled it on my pedalboard for a week to be sure and yes, i want to sell it!

i'm still keen. just not really sure what a fair price is!

trad3mark · Post by **trad3mark** » 20 Aug 2009, 19:51

Epic. Just ordered the parts i'm missing for the Diefet v1.3. AND, a Rectifet v2.1. Today is an epically good day.

kupervaser · Post by **kupervaser** » 21 Aug 2009, 07:53

Is there already a version 1.3.?

Can you post the project files?

Thanx

ech0es · Post by **ech0es** » 21 Aug 2009, 17:21

No there is only the 1.21

maybe the

removing parts C33 and R32 and replace them with jumpers (though i think it also altered the tone a bit, but that may be just me )

thing can be considered as a 1.3

Post by **modman** » 21 Aug 2009, 21:39

surfingsfun wrote:
ech0es wrote:not yet, i reinstalled it on my pedalboard for a week to be sure and yes, i want to sell it!
i'm still keen. just not really sure what a fair price is!

Pedalshopping on fsb? A bit dangerous with so many great samples about this design. Unfortunately all DIEFET pedals will sound different due to the JFETs. There are a lot of projects (ROG) and kits available for these kind of projects. I would really want to see somebody rework this for a jfet IC and do away with this stupid trimmer biasing - sometimes it just doesn't work to get them biased.

Furthermore a bit crazy project that started out as an amp emulation project but was eventually a sonic clone - which shows in the schematic.

Futhermore I don't understand why this project is in this folder when it is available from the French site. Will move to DIY designs...

ech0es · Post by **ech0es** » 22 Aug 2009, 15:43

Pedalshopping on fsb? A bit dangerous with so many great samples about this design.

Finally i tried it as a preamp instead of my actual preamp (plug into the return of the fx loop) and i keep it !

There are a lot of projects (ROG) and kits available for these kind of projects.

Yeah a lot for fender, vox marshall, nothing for diezel because there is no schematic

I would really want to see somebody rework this for a jfet IC and do away with this stupid trimmer biasing - sometimes it just doesn't work to get them biased.

analoguru in the first page of this thread:

. and the design still uses drain-trimmers - even at the source bypassed stages - which will cause every unit to sound different due to the different drain-currents....

If only the frequency response would be important, someone could use op-amps instead of the FET´s too...

analogguru

But it's not a problem here, we did'nt start from the real schematic, because it is unavailable.