P-Verb (low cost Eurofied effects processor)

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pulplogic
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P-Verb (low cost Eurofied effects processor)

Post by pulplogic » Wed Jan 08, 2014 9:33 pm

The P-Verb is a low cost and reasonably simple conversion of the Alesis PicoVerb effects processor. The conversion is mostly mechanical and consists of input attenuation, output amplification and eurorack power interfacing. The majority of the conversion happens on a small interface pcb. Some minor smd soldering (0805) is required for 2 gain setting resistors on the PicoVerb pcb. The module is 8HP but is deep by today’s standards at 100mm (4”). Certainly is not skiff friendly.

I have done several of these for myself and friends and thought I would see if a few people might be interested in a kit. The PicoVerb is out of production, but typically sell used for less than $50. I have a small stash of brand new PicoVerb units that we’ll offer up at $50 on the Erthenvar website. I’m not sure on the exact pricing for the panel, knobs, pcb and components, but they will be less than $50 so this can be a sub $100 reverb module ($99.99). Anyway that is the plan if there is interest.

I turned on the camera for a look at the assembly process.
[video][/video]

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negativspace
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Post by negativspace » Wed Jan 08, 2014 10:13 pm

Awesome idea! I have an old Nanoverb in the closet that I've always thought about trying to do this with. :hihi:

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Matos
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Post by Matos » Wed Jan 08, 2014 10:15 pm

That video was amazing! I could watch you solder all day! :love:

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Post by sduck » Wed Jan 08, 2014 10:39 pm

Cool! I've got an old microverb that's been sitting connected to my mixer but not dialed in for like decades - I've been meaning to do something like this to it eventually.

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Post by paperCUT » Thu Jan 09, 2014 5:58 am

Really good conversion (and entertaining video :tu: ). I too have a microverb that could get this treatment.

I've been very close to modifying and mounting an Alesis Bitrman, it runs internally on 3.3 volts but requires AC so I assume it's a similar setup to this unit with output buffers. The cool thing is the pots are all just analog voltages into the cpu so with some additional components (scaling to 3.3v) everything would be CV-able. So tempting.....

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Post by sicpaul » Thu Jan 09, 2014 7:59 am

Wow!
That price for a reverb module is as hot as the video!
Yes, sir, you caught my interest. In other words:
I'd love to get one kit, so count me in :love:

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Post by CometxYh1n1egyPt » Thu Jan 09, 2014 8:54 am

I'd definitely be in for a kit!

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Post by Dubka » Thu Jan 09, 2014 10:32 am

Great!

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Post by sammy123 » Thu Jan 09, 2014 1:13 pm

very cool.

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Post by goiks » Thu Jan 09, 2014 5:21 pm

you rule! another cool module and video.
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Post by dude » Thu Jan 09, 2014 5:54 pm

wow that was an amazing video! you are fucking awesome!

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pulplogic
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Post by pulplogic » Fri Jan 10, 2014 12:42 pm

Thank you for the nice comments. You guys are much too kind.

I will deliver a few kits to Erthenvar on Sunday.

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Post by kuxaan-sum » Fri Jan 10, 2014 2:00 pm

Hmmm.....
What about adding CV control for the mix?
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Post by pulplogic » Sat Jan 11, 2014 7:15 pm

kuxaan-sum wrote:Hmmm.....
What about adding CV control for the mix?
A lot more could be done. The mods I made are a grab of lowest hanging fruit.

A friend who is handy with a camera took a few pictures for me:
Image

Image

Image

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Post by urbanscallywag » Tue Jan 14, 2014 1:02 pm

Erthenvar | PulpLogic Modules | Erthenvar Modules | Euro Accessories | 1U Tiles

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spacenoodle
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Post by spacenoodle » Fri Feb 28, 2014 12:04 pm

There's a Picoverb with no power supply for 5.50 on Ebay ending in 30 minutes if anyone wants to build this.

http://www.ebay.com/itm/Alesis-Picoverb ... 2a3822c693

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Post by yarr » Wed May 01, 2019 4:53 am

Is there a way to mod this so that the left and the right channel would be an "individual mono channel" without bleeding into the other?

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