PT2399 DELAY simple 'after chorus'' mod...

[Locrian99]

I cant see why it shouldnt work in any usual pt2399 topology based delay really....

Tack it on and see...

I did and crack open mine and ran some wires out to a bread board.  I'm not really noticing anything.   It's connected on a strip after the 100n goes to ground would that matter?  So here I'm connecting to pin 8 on that last hole in the strip.   

[deadastronaut]

Heres the schematic for the finished pedal. " ebe delay"

https://www.diystompboxes.com/smfforum/index.php?topic=129208.msg1247718#msg1247718

The mod is literally tacked on to an existing pin 6 and 8 setup.


With lower values i got a " ducking effect" just before the chorus effect settled in.....

[Locrian99]

I'll have to play with values after removing the pot and just running the 470n to the 470k I can hear it.   It's subtle but def there.   Oh your using a 1u and basically a 1.5M resistor.   

[deadastronaut]

Yeah thats values what i settled on...

Itll be ok with 470n too......down to taste really....

[Mark Hammer]

The amount of modulation is modest.  What that means is that one doesn't notice it quite as much (if at all) on the shortest delays, but it becomes more apparent (for me at least) as delay time is increased.