the video is a bit old and with a step back on a snare would have been more demonstrative, but it still gives an idea.
ps : with 500ohm reistor on time, do not start the module with the time pot at zero, the module hangs (a restart and everything is fine), if you want to avoid this increased resistance (can be 2k), otherwise just think about it
Great, easy and cheap stuff - ma favorite combination : )
I just added pot instead of the R21, could you share some brief schemes for the rest of the mods?
If you look around you can find a little anti-latchup circuit that puts a couple k resistance on that point for the first couple seconds after power up. I just put in a fixed 2k in series and said good enough.
Today I tinkered a little with my Simple PT2399 Delay according to Sam’s schematic. The Mix Pot only worked in the last third, so I used a trimmer and turned it around a bit. Now the poti works the whole way and the mix can be adjusted much better. In my case a 4.3K resistor (seen in the picture) helped. Maybe you have this problem too and my tweak will help you a little.
I already own a handful of PT2399 chips so I guess it would be most economical for me to just build the entire circuit myself. Seems doable, but I guess the end result takes quite some space on the stripboard
would love to do some experimenting though, like chaining a few of them together.
I also still have so many of them, if I had known that the circuit was available for so little money, I would have bought it straight away, on the other hand you’re right, I would like to see if you can somehow synchronize 2 PT2399 and then A stereo delay can be built with 1 chip for right and one for left, or something like that
@Dud why use a trimmer and not a panel potentiometer to replace R21?
I’am building an echo module after what you posted, and I am trying to understand.
Thx!
Since this first post I added 2 momentary push switches (one for “freezz” the Time and the other the same thing on Feedback), 2 small buttons for more fun
Hi, a potentially silly question, but I’m a bit of a n00b, both on this forum and with the PT2399.
If I wanted to just grab the wet signal, where would be the correct place to get it?
After coming across this schematic I tried the leg of C17 that is connected to the original mix pot (the one that comes with the module). I am getting the wet signal only, but it seems to be quieter and have less repeats than what I get on the original output.
Can anyone point me to a better point, or even a way of adding a proper dry/wet pot?
I’m a bit scared of releasing the magic smoke if i just poke around randomly!
Oh, and a few pointers on how to go about freezing time would be amazing too
already in the process of this construction
Thanks !
