# Reverb & General FX Modules **URL:** \ **Category:** KOSMO MODULES\ **Created:** [May 2, 2022, 6:59pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963 "2022-05-02T18:59:59Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Moseley](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/moseley/32/20644_2.png) [@Moseley](https://lookmumnocomputer.discourse.group/u/Moseley)\ **Post date:** [May 2, 2022, 6:59pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/1 "2022-05-02T18:59:59Z")
Anyone built any Kosmo reverb modules like the erica synths black hole? or just interesting FX modules in general? Keen to build loads of fx module with lots of cv options as my rig is gonna be used as an fx centre to pass audio from my computer into it to get creative. Searched online loads but not really found much! ---
**Author:** ![KardashevTypeII](https://avatars.discourse-cdn.com/v4/letter/k/43a26b/32.png) [@KardashevTypeII](https://lookmumnocomputer.discourse.group/u/KardashevTypeII)\ **Post date:** [May 2, 2022, 7:57pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/2 "2022-05-02T19:57:47Z")
@dud has DSP FX 100, @jkb has Spring Reverb Driver and @lookmumnocomputer has the impending spring reverb. It’s not a lot but it should break ground on further FX. > **[64. SYNTHÉTISEUR MODULAIRE DIY – DSP FX 100](https://soundbender36.wordpress.com/2021/03/14/64-synthetiseur-modulaire-diy-dsp-fx-100/)** > > Un module d’effets fait à partir d’un petit circuit appelé DSP FX 100 que l’on peut trouvé facilement et pas cher sur le net. Pot Mix Encoder rotatif pour sélectionner parmi les 9… -Fumu / Esopus ---
**Author:** ![zorch](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/zorch/32/5586_2.png) [@zorch](https://lookmumnocomputer.discourse.group/u/zorch)\ **Post date:** [May 2, 2022, 10:02pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/3 "2022-05-02T22:02:18Z")
I would certainly check out the [Tripple Splashback Delay](https://store.lookmumnocomputer.com/collections/modules/products/2399-triple-splashback-delay) ---
**Author:** ![Moseley](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/moseley/32/20644_2.png) [@Moseley](https://lookmumnocomputer.discourse.group/u/Moseley)\ **Post date:** [May 2, 2022, 10:09pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/4 "2022-05-02T22:09:24Z")
For sure, that is actually my next build! Looking for more fx and distortion etc also though ---
**Author:** ![Moseley](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/moseley/32/20644_2.png) [@Moseley](https://lookmumnocomputer.discourse.group/u/Moseley)\ **Post date:** [May 2, 2022, 10:09pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/5 "2022-05-02T22:09:43Z")
Ok great! Will check those out for sure ---
**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\ **Post date:** [May 2, 2022, 10:46pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/6 "2022-05-02T22:46:12Z")
> [@KardashevTypeII](#): > > @dud has DSP FX 100 small clarification, the schem is from @Jos + Juanito More 😉 ---
**Author:** ![KardashevTypeII](https://avatars.discourse-cdn.com/v4/letter/k/43a26b/32.png) [@KardashevTypeII](https://lookmumnocomputer.discourse.group/u/KardashevTypeII)\ **Post date:** [May 3, 2022, 1:35am UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/7 "2022-05-03T01:35:58Z")
Dud, I was just crediting the Kosmoification but valid point. -Fumu / Esopus ---
**Author:** ![Sonosus](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/sonosus/32/13679_2.png) [@Sonosus](https://lookmumnocomputer.discourse.group/u/Sonosus)\ **Post date:** [May 3, 2022, 7:39am UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/8 "2022-05-03T07:39:13Z")
I have @BlackDeath 's WahWah V847 clone > [@BlackDeath WAHWAH V847](https://lookmumnocomputer.discourse.group/t/blackdeath-wahwah-v847/4112): > > This is the BlackDeath WAHWAH! It’s a Kosmo-ified version of the classic V847 wah pedal with a few upgrades - Eurorack/Kosmo style power and diode protection, external CV control, a Q/tone-control knob, an attenuator, an indicator LED, an internal LFO for ‘autowah’, and a switch to switch between manual and LFO/CV. There are some unique features in this design. It uses two vactrols, which can be purchased or DIY’d, and it uses a part called a [resonator](https://en.wikipedia.org/wiki/Electrical_resonance) which gives it … There’s the safety valve and valve VCA for distortion. ---
**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\ **Post date:** [May 3, 2022, 8:15am UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/9 "2022-05-03T08:15:07Z")
A cheap PT2399 delay > [@Cheap pt2399 reverb/delay module diy](https://lookmumnocomputer.discourse.group/t/cheap-pt2399-reverb-delay-module-diy/801): > > it’s a project that I did a while ago but maybe it can interest a few people. A delay module, made from a “flat reverb module PT2399” bought very cheap on the net. Modifications : Elongation and adjustment of Time: remove the resistance R27 on the PCB and replace it with a potentiometer of 100k + a resistance of 500 ohms Setting the Feedback: remove the resistor R21 on the PCB, add a trimpot of 22k and change the original potentiometer from 50k to 100k. Addi a CV entry with a vactrol (connec… Distortion > [@Simple distortion unit](https://lookmumnocomputer.discourse.group/t/simple-distortion-unit/639): > > A simple schem of [Nicklas Ronnberg](http://familjenronnberg.se/~niklas/diy/eurorack/dist/) Diode clipping !!! mine (allways in Kosmo format) > [@Rats and other distortions](https://lookmumnocomputer.discourse.group/t/rats-and-other-distortions/4469/8): > > I have a modern rat pedal, the Proco I think. I’ve only used it for synth a couple times but it can make my baby loog guitar sound super heavy rofl Stomp Box Adapter to use all fx guitar pedal with your modular > [@AI006 Stomp Adapter Schematic Help](https://lookmumnocomputer.discourse.group/t/ai006-stomp-adapter-schematic-help/96/21): > > EDIT: Switched pots to A100K and fixed their pin order. You are correct. I pulled out my built module and it’s connected to pin 6. Here’s the updated layout: ---
**Author:** ![jkb](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jkb/32/26136_2.png) [@jkb](https://lookmumnocomputer.discourse.group/u/jkb)\ **Post date:** [May 3, 2022, 3:58pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/10 "2022-05-03T15:58:15Z")
Here is my spring reverb driver for completeness: [GitHub - polykit/kosmo-spring-reverb-driver: Schematics and PCB layout for a spring reverb driver in Kosmo modular format](https://github.com/polykit/kosmo-spring-reverb-driver) ---
**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Post date:** [May 3, 2022, 7:11pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/11 "2022-05-03T19:11:34Z")
I did a multi-fx unit based on a PT2399 (reverb, delay, chorus and such): > [@Time-Warp-O-Matic](https://lookmumnocomputer.discourse.group/t/time-warp-o-matic/2807): > > Sculpt-O-Sound presents: Time-Warp-O-Matic Summary / tl;dr Time-Warp-O-Matic is a PT2399 based delay/echo/chorus multi effect built using 2 prefabricated PT2399 boards, a CD4066 analog switch, a rotary encoder, 2 potmeters and 2 opamps. The analog switch allows for choosing in which way the signals are routed to and from the PT2399s and the output. Furthermore a feedback / tail and a Wet/Dry control are included. An arduino nano, a rotary control a… and I have published some more fx-units like wave shapers and wave multipliers: > **[josbouten - Repositories](https://github.com/josbouten?tab=repositories)** > > josbouten has 16 repositories available. Follow their code on GitHub. ---
**Author:** ![Moseley](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/moseley/32/20644_2.png) [@Moseley](https://lookmumnocomputer.discourse.group/u/Moseley)\ **Post date:** [May 4, 2022, 10:26am UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/12 "2022-05-04T10:26:05Z")
This looks great, what is the process of adding cv to parameters in modules? Does it involve a specific chip etc is it simple or really complicated? Trying to learn more about the process to adapt modules to include all the cv controlled parameters I can get my hands on ---
**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\ **Post date:** [May 4, 2022, 11:41am UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/13 "2022-05-04T11:41:20Z")
You can use a Vactrol (or a diy one : LDR + a led), or another solution for better control and result is adding a little circuit some info here > [@Adding CV to existing circuits](https://lookmumnocomputer.discourse.group/t/adding-cv-to-existing-circuits/1305): > > hey friends, I am working on a project (BD++) and am wanting to add CV to a parameter usually controlled by a potentiometer. here is the existing circuit: [vactolQ1] I understand since this pot is acting as a variable resistor it can be replaced with a cv source via vactrol. Is it possible to just sum them together, pot and CV? something like: [vactrolQ] is there an easier way to do this without using vactrol? opamps? and here > [@How to add CV control to a knob on existing module](https://lookmumnocomputer.discourse.group/t/how-to-add-cv-control-to-a-knob-on-existing-module/3634): > > Hi, Recently exploring the amazing world of clocks/dividers and everything in between. I found something perfect for my needs and budget to generate polyrythms. the CLK from REBEL tech. which has three knobs that control 1.Master tempo 2. /8\* out 3. /24\* out. As this is on github : [GitHub - pingdynasty/CLK: CLK is a triple clock generator Eurorack module from Rebel Technology](https://github.com/pingdynasty/CLK) I was wondering if anyone would know how to add CV control either simply to the master tempo and for more complexity CV … ---
**Author:** ![Moseley](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/moseley/32/20644_2.png) [@Moseley](https://lookmumnocomputer.discourse.group/u/Moseley)\ **Post date:** [May 4, 2022, 12:18pm UTC](https://lookmumnocomputer.discourse.group/t/reverb-general-fx-modules/4963/14 "2022-05-04T12:18:54Z")
Lovely, gonna have a good read through these