AxWax - That Echo Track (aka PT2399 MIDI Delay Jam)
https://v.basspistol.org/videos/watch/1eabb554-8873-4d63-ab3b-9cef3ba74f47
#pt2399
After working on PT2399 circuits for almost a year, I think I'm finally honing in on a workshop and it's going to be a very straightforward no-bells-no-whistles pedal 🦐
Funny how it works. I had all those quirky ideas, I've made several prototypes, and none of them were as fun as a tried-and-true datasheet circuit with a few tweaks and careful component selection.
That's like the thousands time it happens to a project of mine 🤪
Oldie but goodie: KiCad symbol for PT2399 that shows the internal structure of the chip.
Based on the ElectroSmash article.
WIP enclosure design for a delay pedal. Still not sure if I can fit all the features into the 1590BB. Certainly hope that color is available!
AxWax - That Echo Track (aka PT2399 MIDI Delay Jam)
https://diode.zone/videos/watch/487f1158-203e-429f-8717-c7141e4e1c54
The Eerie Sounds Of Ioalieia: An ESP32/Valve/Analog Hybrid Circuit Sculpture
Tidy straight lines. Nice job!
We've not had a circuit sculpture piece for a while, so here's "ioalieia" a lovely hybrid digital-analog sound sculpture by [Eirik Brandal] to dig into. The host of the show is the ESP32 module, which generates audio frequency square waves, which are fed into a MCP4251 digital potentiometer. From there, it is fed into a AS3320 Voltage controlled filter (VCF), from Latvia-based ALFA (which is new to us, despite them being manufacturing electronics for sixty years!) This is an interesting device that has a four independently configurable filter elements with voltage controlled inputs for frequency control and resonance. The output from the VCF is then fed into a 6n2p (Soviet equivalent to the 12ax7) twin-triode vacuum tube, which is specifically aimed at audio applications.
The suitably distorted filtered square waves then pass into a Princeton Tech Corp PT2399 echo processor cjip, which being digitally constructed, uses the expected ADC/RAM/DAC signal chain to implement an audio echo effect. As with the VCF, the echo depth can be modulated via the digipot, under the ESP32's command. For a bit of added bling, the vacuum tube output feeds back into the ESP32, to be consumed by the internal ADC and turned into a light show via some PWM controlled LEDs. Lovely.
The final audio output from the echo chip is then fed into a speaker via a pair of LM380 amplifiers giving a power of about 5W. It sounds pretty good if you ask us, and software configurable via Wi-Fi, giving this sculpture plenty of tweakabilty.
Of course circuit sculpture come in all shapes and sizes, and it wouldn't do to not mention at least one sculpture clock project, and while we're on it, here's last year's remoticon circuit sculpture workshop.
#art #musicalhacks #analog #as3320 #circuitsculpture #digital #digitalecho #esp32 #mcp4251 #pt2399 #vacuumtube
zut de zut, j'ai essayé d'alimenté le module #pt2399 🐞 par usb, mais 5V c'est pas du tout assez ... pas de socket jack 9/12V soula main... j'ai commandé des connecteurs 9v mais ils sont en cours de livraison... je vais ravager une plie 9v hs pour faire un connecteur au moins savoir si le montage fonctionne
#theworkshop #diy #audio
Les principaux hack pour le module de delay #pt2399 🐞sont dans cette vidéo. Notamment le hack C17 pour régler le feedback et le hack R27 pour l'écho🔊.
On peut rajouter des interrupteurs courts circuits sur le feedback 🎛️ et le delay 🎛️ pour passer directement à un état voulut... 👩🏭
C'est dans la liste de mes projets... plusieurs échos/délais pt2399 🐞 en série ou en parallèle... Et Look mom no computer 🖥️💻 en fait une vidéo 📺... Youpi
https://youtu.be/RTb57b2df14
#theworkshop #diy #audio #pt2399
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