# LMNC simple 1v/oct oscillator volume question on some of the outputs

**URL:** <https://lookmumnocomputer.discourse.group/t/lmnc-simple-1v-oct-oscillator-volume-question-on-some-of-the-outputs/6689>\
**Category:** DIY STUFF\
**Created:** [November 14, 2023, 9:33pm UTC](https://lookmumnocomputer.discourse.group/t/lmnc-simple-1v-oct-oscillator-volume-question-on-some-of-the-outputs/6689 "2023-11-14T21:33:10Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Roadhog](https://avatars.discourse-cdn.com/v4/letter/r/a5b964/32.png) [@Roadhog](https://lookmumnocomputer.discourse.group/u/Roadhog)\
**Post date:** [November 14, 2023, 9:33pm UTC](https://lookmumnocomputer.discourse.group/t/lmnc-simple-1v-oct-oscillator-volume-question-on-some-of-the-outputs/6689/1 "2023-11-14T21:33:10Z")

</div>

Hi there, new to building modular synths and have just finished my first completely diy module using the LMNC simple oscilator stripboard design but modifying it slightly to fit into a form that matched a faceplate i had already. I used the core version with sqaure out and im impressed ive managed to get it working first time. All 3 of the wave outouts work, as well as the CV IN, however the triangle and saw waves output at a lot less volume than the square.

Ive used all the suggested components so not sure what would be causing it, any suggestions on how to debug?

As a new user it will only let me add one pic, but do appreciate the form factor ive gone for may make it hard to see anywah

 ![20231114_211933](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/6/6/66342ba8e746c5925f13ca67149a9970ffb90bc8.jpeg)

---

<div class="post-metadata">

**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [November 14, 2023, 11:40pm UTC](https://lookmumnocomputer.discourse.group/t/lmnc-simple-1v-oct-oscillator-volume-question-on-some-of-the-outputs/6689/2 "2023-11-14T23:40:32Z")

</div>

This is normal:

> [@1222 Tuner VCO Triangle Waveform Output Volume](https://lookmumnocomputer.discourse.group/t/1222-tuner-vco-triangle-waveform-output-volume/3014):
>
> Hello, I’ve recently built the 1222 VCO and whilst everything appears to be working fine, the triangle output seems a lot quieter than PW or sawtooth. I couldn’t find much info on this, and I’m just wondering if this is expected due to the nature of that waveform or if there is something else down to calibration that I’m missing? Apologies if there is an obvious answer, I’m fairly new to this! Thanks

That topic is about the 1222 module but the same applies to the simple one.

There are 3340 based oscillators, like the Thomas Henry VCO Maximus and the Kassutronics VCO 3340 (which I partly based [my VCO design](https://lookmumnocomputer.discourse.group/t/hero-and-sidekick-vcos/5179) on) that scale and offset the 3340 outputs to make them all ±5 V, but Sam’s modules don’t.

> [@Roadhog](#):
>
> As a new user it will only let me add one pic

> [@New users: Why can't I (post images) (send PMs) (edit wiki posts) (etc.)](https://lookmumnocomputer.discourse.group/t/new-users-why-cant-i-post-images-send-pms-edit-wiki-posts-etc/6115/1):
>
> Because you’re brand new here. Welcome! Thanks for reading the [FAQs](https://lookmumnocomputer.discourse.group/c/frequently-asked-questions/8). The Discourse platform puts some hard limits on what you can do when you first walk through the door, but it only takes 10 minutes to get past them: There are [higher levels](https://blog.discourse.org/2018/06/understanding-discourse-trust-levels/) that take more time and effort but getting to Basic is quick and easy enough.