Search found 41 matches

by kupervaser
08 Jun 2009, 14:08
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Here is my recording:
http://www.soundclick.com/player/single ... i&newref=1

My settings: everything is on max accept the tone is on 12 oçklock, and the colume is adjusted to have a good balance with clean.
by kupervaser
08 Jun 2009, 12:10
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

It's so fast, I can't really hear the guitar sound.
It suits the band well.

I think I might build the X2FET the Randall emulator next.
by kupervaser
03 Jun 2009, 19:18
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Hello Kabi, I've listened to the sample. I like the sound, it is similar to mine, however mine sounds tighter. Maybe because you have your gain not on full. I have it on full all the time. My mid knop wors ok, however the presence knop doesn't seem to make any difference. Personally I don't think th...
by kupervaser
03 Jun 2009, 10:45
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Oh sorry, i didn't understand.

You can find lot's of stuff here:
http://www.techniguitare.com/projets/DieFet/
by kupervaser
03 Jun 2009, 09:37
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

By the way, what version are you going to build?
by kupervaser
03 Jun 2009, 08:03
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Kabi, where are you from?

Contact echoes for the pcb, otherwise i have a person in The Netherlands who might be willing to etch a pcb for you.
by kupervaser
03 Jun 2009, 05:00
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Ask the guys who invented this thing. Search in the beginning of this topic. The nickname is echoes, they will help you.
by kupervaser
02 Jun 2009, 17:22
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Hey Kabi, which enclosure did you use by the way?
by kupervaser
02 Jun 2009, 11:39
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Awesome, I will rewire it asap!

Maybe record a you tube movie and post it here.
by kupervaser
02 Jun 2009, 09:36
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Thanx for the explanation. And man I hop you can fix this problem. Can you post some sound samples? I still have a problem with my DIEFET. In bypass I hear oscillation when the gain is past 3 ocklock. It is kind of a peep, like the one you hear in your ears after expoxing them to loud music. It is n...
by kupervaser
01 Jun 2009, 15:18
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

If this only happens, when you place the other devise before the Diefet, you should add a 100n capacitor before the input of the circuit board. in addition you should place a 1M resistor to ground before this to avoid clicks while switching. This means: From the Switch (The pin that is connected to...
by kupervaser
30 May 2009, 17:32
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Which off board connection did you use? Do you have a picture?
by kupervaser
24 May 2009, 09:51
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

I finished it finally. It works.

Here is the sample for those who are interested.
Recorded on a Matamp GTO 120 and a SG tuned to B:
http://www.soundclick.com/bands/default ... dID=435410
by kupervaser
22 May 2009, 09:50
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Sorry i meant 0,1uF, it is the one that is connected direclty to the sweep potmeter.

It's true, the DEEP pot has a small effect on the sound at this moment. Do you recommend to use a smaller cap like 220pF or something like that?
by kupervaser
22 May 2009, 08:35
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Hey, i got it to work. THe schematic and the partslist differ in 1 component. The capasitor just after the DEEP pot, the on that connects to the sweeper must be 1,1uF like the schematic sais. This capasitor (C27) in the partslist is beeing marked as 1nF. So i changed that but nothing improved. Then ...
by kupervaser
22 May 2009, 08:35
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Hey, i got it to work. THe schematic and the partslist differ in 1 component. The capasitor just after the DEEP pot, the on that connects to the sweeper must be 1,1uF like the schematic sais. This capasitor (C27) in the partslist is beeing marked as 1nF. So i changed that but nothing improved. Then ...
by kupervaser
19 May 2009, 13:37
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Thanx for your help, i will read the website very carefully and will try all the things you advised me tonight. Tomorrow I will post the results.
by kupervaser
19 May 2009, 11:44
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Do you mean the 33K resistor between the 1 22nF capasitors above the U1a? Ok i will.

Can you explain this oscillation a bit? Why would the circuit oscillate if the resistor wasn't good?

Kind regards,
by kupervaser
19 May 2009, 06:49
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

Hello kantul, I used 5 j201 fets. I have removed the C26 from the pcb during debugging. If you look on the layout I posted it is the first capacitor after the treble pot. So basicall now there is a cut in the circuit. When I use the audioprobe now, I hear a good aplified sound on the treble pot (I a...
by kupervaser
18 May 2009, 17:08
Forum: Printed/Published Online Designs
Topic: DIEFET: Jfet simulation of the Diezel VH4
Replies: 222
Views: 100279

Re: DIEFET: Jfet simulation of the Diezel VH4

I still haven\t solved the problem, if anyone can help me would be very cool.