Rediculously modded PT2399 Delay

oldgravity · Post by **oldgravity** » 15 Apr 2010, 17:45

Nope, I'm guessing NOC3 is busy with his business:

http://noc3effects.com/

However, we have an even more ridiculously modded PT2399 delay brewing up over at the other place:

https://www.diystompboxes.com/smfforum/ ... ic=81668.0

~arph · Post by **~arph** » 15 Apr 2010, 19:25

And an even more ridiculous one on my desk here.. (that i is why this thread didn't come up when I searched on ridiculous

)

Four PT2399 in series.. all separate playback and feedback. I'm trying to get the sound of the binson echorec. (Which I got btw)
But I still feel like a bit of an amateur so I do as much reading on PT2399 related threads as possible.

Sorry about the quality. Missing in that picture is a SSM2166 and a MAX395 which now occupy the top left side of the breadboard.

more pics here: http://twitpic.com/photos/arrfx

oldgravity · Post by **oldgravity** » 15 Apr 2010, 21:56

Pretty cool. Will be interested to see that shape up.

Let me ask you this:have you considered doing this digitally? Since the PT2399 is already digital delay, it's not like you'd lose any analog mojo. This kind of thing is a prime candidate IMO to use the Spin FV-1 chip. It would be much easier than doing all the mixing, etc. in analog (I've done some of my own experiments with 6 PT2399s in one box in a mixing matrix).

~arph · Post by **~arph** » 16 Apr 2010, 06:21

Yes I did, but if I undersood correctly the FV-1 does not have enough i/o connections wiith the outside. Like only three pot connections. I need at least five for the delays (4x time and one regen.) seven if I include modulation. Even more if I want to do some tone shaping. Unless the FV-1 has a digital interface (where additional hardware is needed for) I don't see a way to do it with all parameters i need.

Regards,

Arnoud

oldgravity · Post by **oldgravity** » 16 Apr 2010, 06:28

It's possible to do some clever stuff to get more pots, but once you need 7 pots, you're right that it does become a little less appealing (still possible, though).

~arph · Post by **~arph** » 16 Apr 2010, 07:16

Yeah can imagine some clever tricks. Just as with the current button interface I have. I can sense eight different buttons throug a single wire. (just a bunch of voltage dividers).
Also I like to see this project as a good way to practice my skills. I've learned a lot of new stuff already.

~arph · Post by **~arph** » 16 Jun 2010, 08:01

Here's some progress:

gilmour_pugliese · Post by **gilmour_pugliese** » 03 Jan 2011, 10:38

any news?

rasta_maleek · Post by **rasta_maleek** » 31 Jan 2011, 09:21

waitting for advances

~arph · Post by **~arph** » 01 Feb 2011, 14:33

On NOC3's version? dunno.

Mine is finished: