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on a side note, i ended up going through a batch of about 20 diodes to find four that matched very well.  This made a huge difference.

@ootini, here's the front panel designer file:http://peff.com/synthesizers/modular/2hp-ring_modulator.fpd.zipand more information about the circuit:http://www.cgs.synth.net/modules/cgsrr.html

Wow, this is awesome. Is there a post on muffwiggler about this ?

looks really nice. would you mind sharing the planel file for front panel express? i'd really appreciate it. this is just the ticket for my final 2hp hole :) oootini at yahoo dot com

no worries if you'd rather not :)

It's aluminum.  I had it made by front panel express.The circuit is based on the Ken Stone Real Ring Modulator.

cool panel! how did you do this? is it an alu panel? 

EDITED Apr 11th 2014, 09:42

Circuit design by Thomas Henry, PCB design and Serge adaption by Matthias Herrmann (fonitronik).

Thanks, I looked at that and I guess I just couldn't believe my own eyes.  I guess if those 250mA are the limiting factor here, and especially if you have other modules with higher startup requirements, something like this would be of help: http://www.perfectcircuitaudio.com/electronic/modular/cgs763-power-supply-delay.html

EDITED Apr 6th 2014, 18:45

have a look at the Metasonix website. To my amazement, I discovered that "800-850 mA cold startup is required for 3-5 seconds" :-O

http://www.metasonix.com/v3/index.php/r-56-reverb

Can anyone confirm this is 600 mA total?

EDITED Apr 3rd 2014, 23:59

finaly something i'd fully like to get. i have been following your work for years. great stuff! i have planned a little expansion/controller box with it: 

when is it gonna be available?

cheers!

Wow that's changed! Looks great.

Thank you Nuuttipukki, that's my goal to design it to be a main controlling/sequencing module!

Here is a pic of the new prototype : http://instagram.com/p/mbuzLprvHS/

Thats good .) this should be mine core controlling/sequencing module. Looks so promising...

Test faceplates should be able to arrive today. The new prototype would be finished in 2-3 days.

any updates on this module?

Any documentation on this?

you will not be disapointed !!!

Matt, is there any chance you're selling these yet as kits or assembled? I'd be very intersted in buying one.

Sure, here's what it does.

1. it's a set of mults and attenuators 

2. it covers all inputs/outputs of the MiniBrute (Audio and CV) 

3. it adds attenuators for VCA and VCF input on the MiniBrute 

4. it's completely passive

There's a MW thread as well http://www.muffwiggler.com/forum/viewtopic.php?t=108849&start=0&postdays=0&postorder=asc&highlight=

EDITED May 13th 2014, 18:12

can you tell us a bit more about the functions of the module?

Cheers! Und grüße aus Stuttgart :) 

PCBs are pretty much done, hoping to do a first batch soon.

For those who are interested, there's a newsletter/interest list available on my blog (no strings attached)

http://ka010.com/post/79693091184/eurolist ;

ha, you're from stuttgart! 

Viele Grüße aus Frankfurt!!

+10000000000

you definitely need to do a kit - as everyone is keen on modding their gear since the korg stuff is out, this would go through the roof!

Working on it! 

Please do! I wouldn't mind one of these. Very useful. 

Hey there, 

it's a one of a kind thing for now though I'm thinking about making it available at some point most likely in kit form. For news and updates keep an eye on my blog at http://ka010.com ;

EDITED Apr 1st 2014, 21:12

Where can I get this or is it a custom, one-of-a-kind thing?

This is in testing period now! More info in a couple of days. ;)

any demos?

I absolutely love this module.  

EDITED Jun 5th 2014, 00:43

I stupidly sold mine some time ago and it's one of those modules you really regret getting rid of. So I got another.
Happy days.

EDITED Feb 16th 2017, 20:12

I love the look, feel, concept, and sound of this. Eager to experience it more!

If you have an RCD this is an indispensable add-on.

That make perfect sense after using it.

Hi David

I usually turn the gain to zero in my patches and have an ADSR completely control the range of the VCA.

The Intial Gain provides lots of gain. I found that it has to be set pretty low to make the VCA have any range. It might be nice as a mod to add an LED to show when you've overdriven the input.

Thanks! It's not pretty but it works ... well, it does sparkle a little when you shine a light on it :D

Love it!  

I wish this module WILL really come on the market

Hey David! If you want a snappier Optodist we recommend the SR3 vactrols, the SR2 are a bit slower which some prefer. Cheers, Ben from RYO

EDITED Mar 20th 2014, 13:06

The vactrols used are really slow, if you are looking for fast response times this is not the module for you.

its DIY at early stage, so i aproximated depth and power consumption, to decrease the error in the totals depth and mA, 

when this module is placed within a the rack.

EDITED Jun 24th 2014, 01:25

Through-zero with v/oct would make no sense.  You would need an infinite negative control voltage.

so, it can do thru zero but no v/oct tracking then? or is only the fm switchable between the two and you get 1v/oct in linear mode as well?

sorry, I own the prototype

What is it with people rating stuff that hasn't been released nor definitely defined yet. According to Doepfer's website, the filter part will probably not be a part of it either, and the characteristics switch might be gone too as they'll be available simultaneously instead.

Super clean VCA, joy to mix with as well. Really good build quality, knobs feel sturdier then my Harvestman modules for example. Like it as contrast to Double Andore's distortion.

I use it at as the final stage of each patch.

Would be interesting to hear how it compars to original Cwejman VCA-4MX. 

Wish it was slightly smaller, 12HP would have been perfect.

Very happy with it overall and the price is amazing. There is also DIY option which is even cheaper! 

EDITED Feb 25th 2014, 22:46

Things change fast...

Enough interest has been generated on MuffWigglers forum, so this unit is now in production.

Absolutely excellent idea from ADDAC in Portugal. Kudos!