Anybody successfully built a Voodoo Vibe clone??

snoof · February 13, 2007, 12:46:34 PM

I've seen some schematics floating around, has anybody successfully built one?? I've seen some people mention that have built the LFO section mated w/ the easyvibe...

Serge · February 13, 2007, 02:43:38 PM

I believe bernarduur made one - not sure if he visits this forum, but he hangs around on the guitargeek forum almost everyday.

Keep us posted!

snoof · February 13, 2007, 05:51:12 PM

I did contact that guy, he said that he had indeed built one from the schematic that is floating around, so it seems to be correct. i'll have to track down the parts now...

Bernardduur · February 14, 2007, 10:26:45 AM

Hey all!

Yes, I build one a long time ago; sounds almost perfect! Schematic is correct (or close). I am borrowing a friends quite soon to A/B it with the real thing!

Serge · February 14, 2007, 11:09:05 AM

I have an original one, so I can give some input if needed.

markm · February 14, 2007, 11:49:56 AM

Quote from: Bernardduur on February 14, 2007, 10:26:45 AM
Hey all!

Yes, I build one a long time ago; sounds almost perfect! Schematic is correct (or close). I am borrowing a friends quite soon to A/B it with the real thing!

Where is the schem?

tcobretti · February 14, 2007, 08:28:25 PM

I would like to see a schem as well, please!

JonFrum · February 14, 2007, 08:36:45 PM

I searched here and found a schematic in about a minute.

RLBJR65 · February 14, 2007, 08:54:20 PM

http://www.diystompboxes.com/smfforum/index.php?topic=21066.0

tcobretti · February 14, 2007, 10:32:54 PM

I've never even heard of it, so it didn't even occur to me to search. Pretty stupid I guess.

Antero · February 14, 2007, 11:21:04 PM

I don't suppose anyone has a layout for this?

John Lyons · February 14, 2007, 11:59:52 PM

Hmmm seems a bit different than the Univibe/easyvibe.neovibe.
Anyone heard the actual unit next to the others and can decribe the differences or impressions?

John

Serge · February 15, 2007, 01:14:54 AM

I don't know how it compares to a Univibe/Neovibe, but it is a very good. Hey, if it's good enough for Page and Clapton, it's good enough for me...

Not so sure though if it is ideal for a DIY project, it looks like a complicated build.

snoof · February 15, 2007, 09:44:14 AM

yep, looks pretty busy. BTW, the 8038 crosses to NTE 864, which is a bit easier to find, and less expensive. There apparently are other chips that will work, but have a diff pinout. I found the NTE chip locally, kinda spendy at $8, but less than the $15 for the 8038...

Bernardduur · February 15, 2007, 09:46:08 AM

I got 3 of em for 3 euro............

markm · February 15, 2007, 09:46:51 AM

Quote from: Antero on February 14, 2007, 11:21:04 PM
I don't suppose anyone has a layout for this?

axeman010 · February 15, 2007, 10:05:47 AM

Hi

I have done a search of all the usual suspects and I cant find one that stocks them in the UK
or Europe for that matter !

Axeman.

snoof · February 15, 2007, 11:00:31 AM

There is a layout about for the LED driver portion of the circuit, but not the whole enchilada...

Quote from: Bernardduur on February 15, 2007, 09:46:08 AM
I got 3 of em for 3 euro............

Rub it in why dontcha!

Quote from: axeman010 on February 15, 2007, 10:05:47 AM
Hi

I have done a search of all the usual suspects and I cant find one that stocks them in the UK
or Europe for that matter !

Axeman.

The other chips that should work(or so I've read) are XR2206, XR2207, MAX038

The Tone God · February 15, 2007, 02:06:06 PM

IIRC the original schematic calls for a XR8038. The original is not in production anymore. The two main 8038 versions being made today is the MAX038 and ICL8038 (?). Neither is exactly the same as the original 8038. One big difference is the MAX038 is designed to run at 5v while the original ran at a full supply (12 or 15v ?). This makes the MAX038 unsuitable for a direct replacement. The circuit would need serious modification to work. I do think the other version could be used as from what I remember it ran at the same voltage range as the original.

The problem with NTE is they are mostly a part re-labeller. The version their search engine suggests maybe not be the correct one as they do not tell you which version the original part really was before they re-labelled it. You could look at their "datasheets" to check but they are pretty thin and lacking. Also they could change versions on you without letting you know or updating the datasheet. I wouldn't chance it myself.

So let me make this clear, the MAX038 is NOT a direct replacement for this circuit.

The 2206 is another signal generator IC similar to the 8038 in usability concept but it is another beast and is no where close to being a direct replacement. The circuit would need significant changes to make the 2206 work.

Andrew

axeman010 · February 16, 2007, 06:35:00 AM

Thanks Tone God for the Info.

have done some digging on the MAX038 and you are right - would need significant changes to make this work.

Given that other waveform generator chips are out there surely somebody must have come up with circuit to use them for
these types of effects ?

Axeman.

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Anybody successfully built a Voodoo Vibe clone??