DIEFET: Jfet simulation of the Diezel VH4

kantul · Post by **kantul** » 24 Aug 2009, 13:53

wow, thread is move.

Which do you like better? The Diefet seemed a little more fuller?

Actually my dr.boogey is slightly modified especially on the tonestack.
I use this more than diefet. I only use diefet for modern rock sound.
schematic here, my blog https://ritualhitamstompboxes.wordpress.com/

Arya.

trad3mark · Post by **trad3mark** » 18 Sep 2009, 09:17

Now that Matt Bellamy has started using a Dickinson Amp, how long will it be till there#s a JFet sim of one of those? lol!

on topic, i'm starting work on one of these on sunday! win win win!

ech0es · Post by **ech0es** » 18 Sep 2009, 11:30

The Diezel simulation is an interesting project because the amp is used by:
Metallica, The Smashing Pumpkins, TOOL, Korn, Wes Borland (Limp Bizkit, Black Light Burns) and not only Muse

Matthew Bellamy / Muse
Adam Jones / Tool
Billy Corgan / Smashing Pumpkins
James Hetfiled / Metallica
Kirk Hammeth / Metallica
Mark Tremonti / Creed / Alter Bridge
Wes Borland / Limp Bizikit / Black Light Burns / Marilyn Manson
Mike Mushock/ Staind

Bugger · Post by **Bugger** » 18 Sep 2009, 16:02

Just to be honest, the circuit is actually a Dr Boogey + LPF(at the output) of ROG's Thor.

trad3mark · Post by **trad3mark** » 18 Sep 2009, 16:38

not sure if matt bellamy will be still using his one(s) on tour though now that he's got a dickinson.

ech0es · Post by **ech0es** » 18 Sep 2009, 19:00

Bugger wrote:Just to be honest, the circuit is actually a Dr Boogey + LPF(at the output) of ROG's Thor.

Nope, look a the schematic

caspercody · Post by **caspercody** » 13 Oct 2009, 14:22

EchOes,
What settings are you using to get the different sounds for some of the famous guitarists? I see you tried to start this on another forum, but only show one setting. I am just asking because it appears you have used this pedal alot.

Thanks
Rob

lesmanaz · Post by **lesmanaz** » 25 Nov 2009, 03:09

Anyone have built the one with MAX1044 chip? I found this schematic on the that french site,
http://www.techniguitare.com/projets/Di ... AX1044.png

Post by **audioguy** » 25 Nov 2009, 04:33

Ive been waiting for someone to do a layout with the MAX1044... I hope someone works one up for this monster.

lesmanaz · Post by **lesmanaz** » 25 Nov 2009, 05:26

audioguy wrote:Ive been waiting for someone to do a layout with the MAX1044... I hope someone works one up for this monster.

There's a layout with the MAX1044 in this folder,

http://www.techniguitare.com/projets/DieFet/

Let us know how it works out if you build it.

ech0es · Post by **ech0es** » 25 Nov 2009, 11:29

lesmanaz wrote:Anyone have built the one with MAX1044 chip? I found this schematic on the that french site,
http://www.techniguitare.com/projets/Di ... AX1044.png

Yeah i build it, it gives more headroom : you have a longer zone of crunch on the gain knob before the high gain zone

A version 1.4 is available with a new knob "Structure", search "Sxdiefet" on techniguitare for more informations

Post by **audioguy** » 25 Nov 2009, 16:32

nice... maybe I'll give it a shot this weekend.

ech0es · Post by **ech0es** » 26 Nov 2009, 15:32

Version 1.5 is now available on Techniguitare.

Post by **audioguy** » 26 Nov 2009, 15:34

OK Im etching the MAX1044 version today while my wife cooks the turkey (happy thanksgiving to our American members)
I've got some questions on the layout- http://www.techniguitare.com/projets/Di ... AX1044.gif

What is the blue box and text telling me on the PRES control pot and the blue box around the 56k resistor in the center of the board?

ech0es · Post by **ech0es** » 26 Nov 2009, 17:12

Plage D'action accrue means "increased zone of action"

A>B
means that the value A works better than the value B

ech0es · Post by **ech0es** » 26 Nov 2009, 17:23

The blue box around the 56k resistor in the center means that if you use a 470k resistor, you will have more volume

t-mibik · Post by **t-mibik** » 26 Nov 2009, 17:40

hi,

I'm the author of this PCB for Techniguitare.com.

in the red boxes you can see the value for V1.1 implemented on the layout and the value for 1.21 writen in red.

in the blue boxes there are some values I moved :
"A > B" = "Stock value > moded Value"

eg :
for the "presence" pot,
stock value > moded value for increased action
- 22k resistor > strap
- 3.3n cap > 10n cap
- 22k lin pot > 100k log pot

please excuse my english

EDIT// "masse" is Ground

Post by **audioguy** » 26 Nov 2009, 20:32

Thank you for your hard work on the layout and clarification of the notes.

t-mibik · Post by **t-mibik** » 26 Nov 2009, 20:34

you're welcome

ebuprofen · Post by **ebuprofen** » 13 Feb 2010, 16:20

Hey, everybody!

I've build this one and it doesn't work

))))
I made my own pcb and I have found couple of mistakes, I used this schematic http://www.techniguitare.com/projets/Di ... X-V1_5.png
two mistakes, that I noticed: I connected the 3 and 4 fet trimmers to 9v and the 5 fet trough 220r to 9v, but then I switched it as it should be and still no sound.
The 4th fets trimmer doesn't change anything, voltage stays the same about 8.5v, starting from tonestack, there is sound, that goes from tonestack to the end, but if I connect input to 5 fet the sound is gone.
Any suggestions?