Dual pt2399

[Morbidpale]

Where is a good place to see a dual pt2399 circuit? I would like to try it but googling for schematics left me overwhelmed. Seems like a handful of circuits that most people cant get to work and some swear by. Thanks.

 

[jessenator]

Madbean Deathklaw
Madbean Zero Point DD & SD (SDX2)

 

[dcfvgb]

Dimension P Chorus - I haved a gerber file someone shared, built it, no clock ticking
Madbean VFE Mobius strip dual delay
Effect pedal kits ping pong delay
Deadastronautfx dream delay (2 2399's) and abductor delay (4 2399's)
Scientific guitarist has some delay/reverb that uses multiple with free links to gerber files

 

[Morbidpale]

Rad. Thanks guys. Ill go study up now.

 

[Betty Wont]

My favorite, the 1776 Multiplex Echo Machine.

 

[chongmagic]

Sagan Delay, has three chips and is a killer pedal, I think I have some old PCBs left, I need to build one again.

 

[thomasbe86]

I use two PT2399 in parallel for a pedal, that works pretty decent. Just two standard PT2399 datasheet delay lines, going into the same summing opamp with the dry signal. tweak the response of each line with the built in input opamp of the PT2399s (hooked up as multiple feedback band pass filters - at LPF1), I added a switch to choose either parallel or "cascade", where feedback of delay A goes into input of delay B and vice versa. I liked the idea of having different speed and feedback for differently voiced delay lines.

 

[Morbidpale]

I use two PT2399 in parallel for a pedal, that works pretty decent. Just two standard PT2399 datasheet delay lines, going into the same summing opamp with the dry signal. tweak the response of each line with the built in input opamp of the PT2399s (hooked up as multiple feedback band pass filters - at LPF1), I added a switch to choose either parallel or "cascade", where feedback of delay A goes into input of delay B and vice versa. I liked the idea of having different speed and feedback for differently voiced delay lines.

Cool idea. Ill give that some thought too. My goal is for the next delay I tinker with to have longer delay time with less noise. But I havent ruled out the rhythmic possibilities...

 

[Aentons]

I think all these mentioned have parallel delay lines. Sounds like you want an example of two in series for longer delay time.

 

[jessenator]

I think all these mentioned have parallel delay lines. Sounds like you want an example of two in series for longer delay time.

The Deathklaw and ZeroPoint are both 2x PT2399s in series though they are no longer in production. Might ping @bean for a solution

The build docs+schematics are on the archive page in a zip for each, @Morbidpale