EHX - Wiggler  [schematic]

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Re: EH - Wiggler

Postby Dirk_Hendrik » 19 Aug 2008, 17:33

borislavgajic wrote:I want to make new better layout for wiggler( or the original is best possible???)........


Wether the original is "the best" is one discussion. Therefore define "better" . There's certainly nothing incredibly "wrong" with the way EH layouted this thing.

Right now I think about the recent Maestro parametric filter thread where "impovements" were brought up before having even tried the original. The between-the-lines reading suggested more of a "I-think-this-is-difficult-let's-make-it-easier" attitude.
Sorry. Plain out of planes.

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Re: EH - Wiggler

Postby nelson » 19 Aug 2008, 17:55

Dirk_Hendrik wrote:
borislavgajic wrote:I want to make new better layout for wiggler( or the original is best possible???)........


Wether the original is "the best" is one discussion. Therefore define "better" . There's certainly nothing incredibly "wrong" with the way EH layouted this thing.

Right now I think about the recent Maestro parametric filter thread where "impovements" were brought up before having even tried the original. The between-the-lines reading suggested more of a "I-think-this-is-difficult-let's-make-it-easier" attitude.



That's a funny interpretation of my suggestions.

I just really don't like rotary switches. Since the original settings were meant to be changeable by foot I thought it a better Idea to replace the DP5T rotary with multiple CD4066, a CD4017 and a footswitch to make the settings foot scrollable. That's *hardly* a "I-think-this-is-difficult-lets-make-it-easier" attitude. It is a "how can I make this footswitchable and get rid of the rotary switch" attitude. The other mods were suggestions on changing the unit to make it more flexible. Again, hardly a simplification to make it easier. I think the original unit is a bit of a simplification of a standard parametric EQ. As it only allows Q presets.
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Re: EH - Wiggler

Postby borislavgajic » 19 Aug 2008, 20:54

Therefore define "better"


better.......to reduce thumping noise(some owners of wiggler reported that as problem)
.....and I think :arrow: input trace is too long,and it could pick up some interference from LED2(and lfo).....also secound(piggyback) PCB and mainPCB are connected with 10 wires (close to each other,and close to tube circuit)........

....also VOLUME pot is close to other (LFO) controls,and it is not shilded wire used for audio path.....


:thumbsup those are things I would change...

....so please comment and correct me....thanks

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Re: EH - Wiggler

Postby borislavgajic » 19 Aug 2008, 22:06

...and one more little thing .....

trace to pin 3 of IC is placed between pins 4 and 5......while it could easy be placed around resistors r39 and r40 ...............then it would not be so thin....
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Re: EH - Wiggler

Postby soulsonic » 23 Aug 2008, 07:05

The schematic contained a small error: a missing resistor (R19). The schematic has been corrected. The link is the same; just refresh your browser to see the updated image.
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Re: EH - Wiggler

Postby borislavgajic » 24 Aug 2008, 17:10

forgive me ,but I like to draw by hand.... :D

many THANKS to great man :arrow: :arrow: soulsonic


boris

:thumbsup long live freestompboxes!!!
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Re: EH - Wiggler

Postby toneman » 27 Aug 2008, 05:07

NICE work guys !! :applause:

a TUBE tremelo. Who woulda' thunk :?:

SURF Music is NOT dead :!:

8)
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Re: EH - Wiggler

Postby Ricotjuh » 06 Oct 2008, 17:47

Can somebody tell me what kind of "lamp" that thing is under the tubes? I can't find the reason of this lamp.
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Re: EH - Wiggler

Postby borislavgajic » 06 Oct 2008, 22:33

If I understand correct......lamp is for making ilusion of glowing tubes....... :wink:

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Re: EH - Wiggler

Postby soulsonic » 06 Oct 2008, 23:03

Yes, it just lights up the inside of the box and makes it look like the tubes are glowing very brightly (even though a 12AX7 doesn't glow brightly at all...).
I believe that Mr. Barmentloo actually holds a patent on the design of lighting tubes from underneath with colored LEDs to give them a more exciting appearance.
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Re: EH - Wiggler

Postby xaxxop » 07 Oct 2008, 12:45

:shock: :applause:
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Re: EH - Wiggler

Postby borislavgajic » 07 Oct 2008, 15:03

a more exciting appearance...


more and more and more :arrow: exciting

:slap:

....or just say :idea: :idea: :idea: :idea: :idea: :idea: :idea: :idea: :idea: pure pure
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Re: EH - Wiggler

Postby analogguru » 07 Oct 2008, 15:27

soulsonic wrote:I believe that Mr. Barmentloo actually holds a patent on the design of lighting tubes from underneath with colored LEDs to give them a more exciting appearance.

Hey, this must be reported to Mr. Barmentlooo.... because Behringer is doing the "trick" with LED´s since more than one decade.

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Re: EH - Wiggler

Postby Ricotjuh » 20 Apr 2009, 23:32

I've got another question..
In the schematic Pin 6 of U2B is an non-inverting input en Pin 5 an inverting input. But in de Datasheet of an LM234 and at a gut shot at the pcb you can see that Pin 5 is an non-inverting input and Pin 6 is an inverting input. Is this an mistake in de schematic or make I an mistake?
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Re: EH - Wiggler

Postby station » 30 Apr 2009, 23:37

Hi from a greenhorn! I love this place - very cool stuff you all are doing here.

I've been looking for a wiggler schematic for a while and I'm so glad you posted it! It's an awesome pedal, you can make some very cools sounds (and also some very bad ones). I play harp through it to try to get a leslie sound, but all the settings sound very bright and brittle even with a nice dark eq for my harp.

Where could I add a simple tone control circuit? I'd love to make one of the settings have the tone control, and leave the rest unaltered.

Any ideas would be much appreciated!
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Re: EH - Wiggler

Postby borislavgajic » 05 Aug 2009, 09:43

....it took some time for me to realize that Wiggler is nothing else but modified Wurlitzer 44 vibrato....slightly modified....one tube in LFO section is substitued with IC based LFO.....and some switching to make it more interesting.......

so no mistery here :thumbsup

http://www.thermionic.info/dorf/Dorf_Th ... ibrato.pdf

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Re: EH - Wiggler

Postby jupagblkxten » 05 Aug 2009, 13:20

heh, nice job boris. :applause: thanks for the link.
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Re: EH - Wiggler

Postby borislavgajic » 05 Aug 2009, 15:23

jupagblkxten wrote:heh, nice job boris. :applause: thanks for the link.



you are welcome....and it is a nother year since Mr souLsonic traced this for all of us...

look at the date on schematic.... :block:

http://freestompboxes.org/members/souls ... iggler.gif

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Re: EH - Wiggler

Postby himister » 05 Aug 2009, 15:38

Hi.
As I see from the photos these are single sided PCB's inside or my eyes "are cheated by some spell". :D

Is there a chance for someone to post a scanned copy and sizes of the PCB's???
I'd be willing to redraw it as the original is! :horsey:

Thnx. :thumbsup
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Re: EH -Wiggler-schematic(please)

Postby Nocentelli » 05 Aug 2009, 18:22

Rodgre wrote:
bajaman wrote:Hey - I looked, but it is missing from my archive too :wink:
Anyone besides that poor sad fool puretube who lurks here got it.
if so PM me too.
Cheers
bajaman


No offense, and pardon me if you were just being ironic (you know how hard it is to tell the tone in people's posts), but didn't that poor sad fool design the thing?


nelson wrote:The guy did design this effect and whatever you think about his attitude to intellectual property he has put *alot* of work into his effects. They are not just standard cookie cutter designs.


borislavgajic wrote:....it took some time for me to realize that Wiggler is nothing else but modified Wurlitzer 44 vibrato....slightly modified....one tube in LFO section is substitued with IC based LFO.....and some switching to make it more interesting.......

so no mistery here :thumbsup

http://www.thermionic.info/dorf/Dorf_Th ... ibrato.pdf

boris


Ironic, yes?
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