# 4ms Dual Looping Delay (DLD) DIY

**URL:** <https://lookmumnocomputer.discourse.group/t/4ms-dual-looping-delay-dld-diy/2880>\
**Category:** DIY STUFF\
**Created:** [February 4, 2021, 11:35pm UTC](https://lookmumnocomputer.discourse.group/t/4ms-dual-looping-delay-dld-diy/2880 "2021-02-04T23:35:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**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:** [February 4, 2021, 11:49pm UTC](https://lookmumnocomputer.discourse.group/t/4ms-dual-looping-delay-dld-diy/2880/2 "2021-02-04T23:49:47Z")

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Here’s maybe some ideas 🙂

> [@Cheap pt2399 reverb/delay module diy](https://lookmumnocomputer.discourse.group/t/cheap-pt2399-reverb-delay-module-diy/801/3):
>
> speed man wink already in the process of this construction here’s a little schem for the op amp out (it’s not mine but I was inspired by it) for CVin with a vactrol on time pot see here if you have another question ?

and this one

> [@Reverb-O-Matic (100 FXs/Reverbs)](https://lookmumnocomputer.discourse.group/t/reverb-o-matic-100-fxs-reverbs/1856):
>
> Inspired by a remark by [Juanito Moore](https://www.youtube.com/channel/UCm1OTU3rnRpBZp7vBExsQEQ) I made a euro rack version of a reverb unit based on a reverb board that one can buy at various places for less than 15 USD. Here is an example I found on [aliexpress](https://www.aliexpress.com/item/4000133632325.html?spm=a2g0o.productlist.0.0.53e44aa3IXsZYD&algo_pvid=2da0a08d-d12c-4a0f-8af6-adf9dff0b302&algo_expid=2da0a08d-d12c-4a0f-8af6-adf9dff0b302-2&btsid=0b0a050116007244904874937e1922&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_): It contains some circuitry and a signal processor programmed with 100 different reverbs and/or reverb style effects. You can see it in the following picture attached to the module. As you can see the circuit board comes with some cables. Note that the color coding of the wires may n…

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