Waveform Magazine PT2399 Delay – DIY Build

Waveform Magazine Project 1 - PT2399 Delay Module - DIY Build

When it was announced that there would be a magazine dedicated to modular synthesis, you can imagine the feedback from the modular community. Waveform Magazine was born in the summer of 2019 and upon its release it created a following.

To much of everyones surprise, not only was this a magazine that reviewed modules, manufacturers, artists, etc.. it also contained its very own DIY projects.

Project #1 was a upcycled karaoke reverb PCB that would be transformed into a eurorack delay. Otherwise known as the PT2399 Delay or Waveform Magazine Project #1, this little 5HP module inspired a whole new group of DIYers due to its new found glory of being published.

Waveform Magazine PT2399 Delay Module

PT23.. what?

At the heart of Waveform Magazine Project #1 is the PT2399 chip. The PT2399 is a CMOS echo/delay processor developed by Princeton Technology Corp.

This digital chip includes an ADC (Analog to Digital converter), 44Kb of RAM to store the samples and a DAC (Digital to Analog converter). This chip was created as a simple solution to add delay/reverb/echo to karaokes and set-up entertainment systems. Pretty rad eh?

The PT2399 is readily available and has a minimum delay of 30ms and a maximum of 340ms (that could be extended up to 1 second at the expense of sound quality) which makes it perfect for delay, echo and reverb effects.

Waveform logo yellow

Happy Easter!

We hope everyone has a happy easter and stays safe this year. We will be closed on the holiday, but shipping and order processing will continue the following day. 

Peace. 

~ fiN

Funky bunny

 – by unknown artist


Eurorack Hardware (EH) Modules – DIY Builds

Eurorack Hardware (EH) Modules - DIY Builds

Spring is on its way and it is the perfect time for new modules to be hitting the market. We were stoked when the gang over at Synthrotek recently announced that they going to carry a new set of modules made by a relatively unknown company known as Eurorack Hardware (EH)

A total of 5 new modules in all, the OR, E-OR, ATT, AMIX and RING are going to make a splash on the modular scene.  With that being said, we are excited about taking on the new DIY Kits from Eurorack Hardware (EH). 

EH - 5 Modules Completed
Eurorack Hardware (EH) Module Line

Who is EH? Who makes these new modules?

Eurorack Hardware (EH) has actually been around awhile, you just kinda know them in a different persona. Have you ever heard of Division 6? What about the Dual Mini Sequencer? Eurorack Hardware (EH) was founded by Scott Rise, who is also is the director of Division 6 Labs. Division 6 manufactured the infamous Dual Mini Sequencer and they produce other synth circuits and video game hardware mods.

EH are mainly known for manufacturing hardware for eurorack modular systems. They specialize in various rails, brackets and screws, and pretty much anything you would need to build a custom rack.

Upon partnering with gang over at Synthrotek the world was introduced to the OR, E-OR, ATT, AMIX and the RING. The five modules are described below, each with their own time lapse build, build notes and gallery.

Let’s get one with the builds…


Sound Study KONTACT Mic – DIY Build

Sound Study KONTACT Mic - DIY Build

Stylized KONTACT Mic

For this build, we take on the Sound Study Kontact Mic Eurorack module. This 4HP module is a unique way to interact with your system on multiple levels. It’s creative applications are endless: finger percussion/rubbing/scratching, guitar input (works surprisingly well with just a little lo-fi crunch), acoustic sources to CV, etc.

While this module has been out awhile now, we wanted to pick up another mic source to add to our racks. The modules rad skull design along with its small footprint made it the perfect candidate!

Study what? Sound?

Sound Study Modular only produces a few modules or stand alone utilities. Along with the Kontact Mic, they are responsible for the MIDI 2 CV (stand alone or eurorack format) which we also use in our racks. Their PCBs and panels are solid and are black with silver accents.

As the MIDI 2 CV is a clone of the famous CVPAL, the Sound Study Kontact Mic is a clone of the MTM Mikrophonie. With that being said, we have both of Sound Study’s modules and we wouldn’t leave home without them!

Enough of the descriptions, let’s get onto the build


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