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HERZLICH HYPEROXIA Build Manual

Dual passive hpf/lpf/bpf
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HYPEROXIA
+ HYPOXIA
DUAL PASSIVE HPF/LPF/BPF
BUILD GUIDE
V1 - MAY 2024

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Summary of Contents for HERZLICH HYPEROXIA

  • Page 1 HYPEROXIA + HYPOXIA DUAL PASSIVE HPF/LPF/BPF BUILD GUIDE V1 - MAY 2024...

  • Page 2: Table Of Contents

    HYPEROXIA + HYPOXIA BUILD GUIDE HERZLICH LABS Table of contents Introduction Safety Equipment Design notes Build guide STEP 1: Populating the PCB STEP 2: Mechanical assembly STEP 3: 0hp assembly Support...

  • Page 3: Introduction

    HYPEROXIA + HYPOXIA BUILD GUIDE Introduction Thank you for choosing a HYPEROXIA + HYPOXIA DIY KIT - this build guide will help you in your endeavor to successfully build your new dual passive audio filter - I recommend you read the build guide before starting your build, and I suggest leaving everything in the bags they came in until you are instructed to retrieve something from them.

  • Page 4: Equipment

    ▪ Safety glasses (Bollé Silpsi) ▪ Cyanoacrylate glue ▪ The following tools are not strictly necessary, but will prove useful: Knurled nut driver (Xicon 382-0006 Herzlich Labs knurled nut driver) ▪ Socket wrenches (Bahco SL25) ▪ A decent multimeter ▪...

  • Page 5: Design Notes

    1U, but easily converted to 0hp for those without 1U rails (or simply the lack of rackspace). The lovely thing about the Hyperoxia + Hypoxia filter, is that it can serve both as two independent filters – a HPF and a LPF – or, through the magic of normalization, as a BPF.

  • Page 6: Build Guide

    HYPEROXIA + HYPOXIA BUILD GUIDE Build guide Let’s build – don’t worry, it’s not difficult at all, I promise. Usually, this is the part where I warn you about pitfalls to come, but it’s not a difficult build. I still recommend reading the guide briefly before beginning, so you are familiar with the process.
  • Page 7 HYPEROXIA + HYPOXIA BUILD GUIDE Next, install the 3,5mm jacks. Pay close attention here, as the jacks must be inserted so that they share ground pins (the exposed pin) in pairs. It is very important that you insert them like this before soldering, because it’s going to be a real hot mess to sort out if you don’t. You have been warned.
  • Page 8 HYPEROXIA + HYPOXIA BUILD GUIDE Finally, insert the potentiometers – you may have to bend the leads a bit to make it fit just so, and it may take a bit of pressure to go in, although it should not require violence. Verify that everything is inserted correctly before proceeding to solder the pins.

  • Page 9: Step 2: Mechanical Assembly

    HYPEROXIA + HYPOXIA BUILD GUIDE STEP 2: Mechanical assembly As you may have noticed, this device is capable of performing both as a 1U racked unit, or as a 0hp in-line unit. To keep the device a 1U unit, simply skip the final step of the assembly.
  • Page 10 HYPEROXIA + HYPOXIA BUILD GUIDE As for the potentiometers, there are nuts included, but they are not strictly necessary. You can install them if this is an exercise you think you will enjoy, but there is no requirement, the front panel is already very securely connected.

  • Page 11: Step 3: 0Hp Assembly

    HYPEROXIA + HYPOXIA BUILD GUIDE To test the device, simply patch in a harmonically rich signal (such as a square wave) in either the HPF or LPF input, and listen to either the HPF or LPF input to get HPF, BPF or LPF. If something is not working as expected, try reflowing your solder joints.
  • Page 12 HYPEROXIA + HYPOXIA BUILD GUIDE Using a hammer may seem tempting, but you have a much better tool at your disposal: your soldering iron. Place one of the nuts over the hole, so that the narrow end is pointing towards the hole.
  • Page 13 HYPEROXIA + HYPOXIA BUILD GUIDE The heat from your soldering iron will disperse into the brass insert, which in turn melts the plastic. Do not use more than a slight amount of pressure, let the heat do the work – you’re merely guiding the nut into the hole, not pressing it in.

  • Page 14: Support

    Sometimes things go wrong - that's OK! If you have run into trouble while building your module, and you can't seem to get yourself out of trouble, you can reach out to lb@herzlich.technology for assistance. Please send well lit, high resolution photos of your PCBs to help me investigate and identify the problem with you.

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