Author Topic: NEW CIRCUIT DESIGN: NZF Flanger  (Read 50063 times)

Fender3D

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #120 on: July 26, 2014, 08:56:34 AM »
What's better for a BBD pedal than a BBDD enclosure?



 :icon_mrgreen:
"NOT FLAMMABLE" is not a challenge

bluebunny

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #121 on: July 26, 2014, 09:59:26 AM »
What's better for a BBD pedal than a BBDD enclosure?

A bucket?   :D
  • SUPPORTER
Ohm's Law - much like Coles Law, but with less cabbage...

armdnrdy

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #122 on: July 26, 2014, 10:02:10 AM »
What's better for a BBD pedal than a BBDD enclosure?

A bucket?   :D

Carried by a brigade?   ::)
I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

DrAlx

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #123 on: July 27, 2014, 12:44:32 PM »
Larry kindly tested a print out of the PCB pdfs and measured the track separation and found it too small if using the toner transfer method.
I didn't account for the thickness of the graphics pen that drew the PCB pictures  :-[
I have now modified the PDFs and re-done the upload.
They should have a track separation of about 0.025 inches now.
The links are the same as before.

Here are the "Heavy PCB" pdfs
http://1drv.ms/1l1Xa60
http://1drv.ms/1l1XNfG



Here are the "Light PCB" pdfs
http://1drv.ms/1nqk9MB
http://1drv.ms/1l1Xem7


[/quote]

armdnrdy

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #124 on: July 27, 2014, 01:44:04 PM »
That was quick!

I printed the board file and checked it.....looks great!

I ordered parts yesterday so...time permitting, I'll get on this as soon as they arrive.
I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

DrAlx

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #125 on: July 30, 2014, 12:10:20 PM »
Here is a link to Larry's component overlay for the "heavy" build.

https://dl.dropboxusercontent.com/u/53299166/DIYstompboxes/NZF%20overlay.pdf

I'll update the build instructions at some point with equivalent pictures for the other builds.

puretube

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #126 on: August 20, 2014, 06:31:41 PM »
That one glitch you don`t cancel at the output of the first of a few cascaded BBDs,
will ride on top of the audio into the next one and appear delayed at the output of that one. Now cancel that...
(or will it be that synchronized that it really does disappear by balancing that last BBD only?)

And how about the accumulating variable DC-pedestal?

More details to be found in BBD-related patents...


BTW.: tube-filament supply can be grounded on either side,
or centered fix,
or may be balanced with an anti-hummer pot - it all worx...   :icon_wink:

Fig.1 unveils the long hidden secret of the Memo-Man...

danfrank

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #127 on: November 19, 2020, 07:19:03 PM »
Zombie thread, resurrected!!! Again!!

Hi everyone,
I came across this thread a few months ago and this project looked really interesting to me so I decided to build one. Many thanks to Dr Alx for bringing this to everyone here!
I just finished calibrating it today and this is a really nice Flanger. Calibrating this is fairly straight forward but it helps that I've been working with and calibrating a lot of flanger projects lately, so I kind of know how these things work. Practice makes perfect, I guess! Lol!
This flanger works as two delay lines, the control voltage of one goes from about 1 volt to 6.5 volts and the other's goes from about 1 to 2 volts. I still need to measure the frequency sweeps of both delay lines, but it looks like one does a wide sweep while the other hovers around the upper end of the frequency sweep.
How does it sound??? Really good! Adjusting the offset, I can get the zero part of the flange to just hang there for a bit before it sweeps back down. Really cool!
There's 3 knobs, one is for the speed of the sweep, one for the width of the sweep and the last one for regeneration/feedback. All the feedback knob does is make the flanger sound metallic so I don't use it much, which is ok because I find that through zero flangers don't really need feedback to sound good.
I'm in the process of painting the box, so it will be a few days before it's boxed up. I managed to fit this in a 1590C enclosure.
Thanks again for making this one available!

« Last Edit: November 19, 2020, 07:21:19 PM by danfrank »

StephenGiles

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #128 on: November 20, 2020, 03:46:56 AM »
Very good, has anyone heard from Larry, I hope he's safe and well.
"I want my meat burned, like St Joan. Bring me pickles and vicious mustards to pierce the tongue like Cardigan's Lancers.".

danfrank

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #129 on: September 13, 2021, 04:20:51 PM »
Hi everyone!
Hopefully Dr Alx sees this but I was bored today and decided to add an expression pedal function to this project. I'd also like to add that for a dual BBD project that this thing has NO clock heterodyne noise which I think is amazing because that is a very hard thing to achieve.
Anyway, I noticed that on the non-inverting input of the LM324 (pin 12) of my build the voltage varied from +3.199 volts to +4.171 volts. I came up with a simple circuit to be able to implement an expression pedal (10k ohms) for use with this, see attached picture. Basically, it's an LM317 circuit with 2 adjustment trimmers. One is to adjust voltage output of the LM317 and the other is to dial in the +3.199 volts on the low end of the expression pedal position.


The "ring switch" of the exp jack goes to R41 (4.7k) resistor end closest to pin 12 of the LM324, and the "ring" of the exp jack goes to pin 12 of the LM324. Works great!
Here's another photo to better clarify how I modified the board.


« Last Edit: September 13, 2021, 04:43:13 PM by danfrank »

BetterOffShred

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #130 on: September 18, 2021, 05:01:20 PM »
Does anyone have live links for this build that work? I went through and didn't see any that worked.

DrAlx

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #131 on: September 19, 2021, 05:27:15 AM »
Does anyone have live links for this build that work? I went through and didn't see any that worked.
https://1drv.ms/b/s!AvrH61utWEtEgxWWfePrWqo7kwXi

BetterOffShred

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #132 on: September 19, 2021, 12:01:52 PM »
Thank you so much!  What a great project, Nice work sir!

rx5

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #133 on: Yesterday at 08:57:56 AM »
Alex

would like to hear clips on these. previous links are dead.
BE d Bezt, Urz D Rezt... RoCk ON!!!

DrAlx

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #134 on: Yesterday at 08:55:06 PM »
Alex

would like to hear clips on these. previous links are dead.
All those SoundCloud links in the first post still appear to work.

rx5

Re: NEW CIRCUIT DESIGN: NZF Flanger
« Reply #135 on: Today at 06:50:27 AM »
Alex

would like to hear clips on these. previous links are dead.
All those SoundCloud links in the first post still appear to work.

ohh it was working!  :icon_mrgreen:

guess I had too much coffee already.

anyways ive been thinking about how I would do near/thru zero flanging with the mistress.. my initial take on this was having a static delay of 400uS + signal inversion on the dry line.. I guess its not enough?

so I again have to do another circuit with adjustable 'cancel phase'...

https://youtu.be/YfpljABy1kY
BE d Bezt, Urz D Rezt... RoCk ON!!!