4ms Dual Looping Delay (DLD) DIY

[Alex1]

Hi !

I’ve been looking for some days into DIY delay modules. I have found some interesting stuff, but not exactly what I’m looking for. I really like the sound of the 4ms DLD module. Do anyone here know if there’s a way to make it DIY ? links to schematics ? Or any module that ressemble it.

It would really help me ! Thanks

[Dud]

Here’s maybe some ideas

Cheap pt2399 reverb/delay module diy

speed man 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) [pt delay modul circuit amp] for CVin with a vactrol on time pot see here if you have another question ?

and this one

Reverb-O-Matic (100 FXs/Reverbs)

Inspired by a remark by Juanito Moore 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: [image] 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…

[Alex1]

yeah thanks ! I’ll check this in a minute

[Alex1]

The cheap pt2399 looks great ! What’s the purpose of theses “tracks” on the veroboard (highlighted in magenta) ? And how do you connect the circuit to your power supply ? I see the 12V wire, but I don’t understand where its going

[Alex1]

And is it difficult to modify a circuit ? I’d like to, but I don’t have the knowledge (yet) to do it. How long was it for you to understand ?

[analogoutput]

The “IC” at the lower left is really a Eurorack style 10 pin power header. So those three strips are +12 V, GND, and -12 V.

[Alex1]

Thanks ! I didn’t know that… Its useful haha

[Alex1]

ah one thing… is it only a representation ? or you have to physically put something on the track (where the rectangles are) ?

[Jos]

The tracks can be seen as flat copper wires glued to the board. So anything you solder to them picks up the signal or whatever is on them. Combining tracks with electrical components like capacitors and resistors etc. makes a circuit. Does that answer your question?

[Alex1]

Not exactly ! I wasn’t talking about the tracks themselves, but the rectangles drawn on them. Do I need to add something to the circuit where the rectangles are ? Or is it only to help understand the circuit?

Is it clearer like that ? I pointed the rectangles with blue arrows on the right My guess is that there’s nothing to add, but I wanted to be sure !

Thanks !

[Jos]

I have no idea why these rectangles are there. You now understand that the tracks beneath them are the power lines, so I’d forget about them.