# VCO 3340 Sine wave

**URL:** https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337
**Category:** DIY STUFF
**Created:** [June 29, 2020, 10:52pm UTC](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337 "2020-06-29T22:52:03Z")
**Posts on this page:** 1
**Showing post:** 35

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### 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: [April 16, 2021, 10:11pm UTC](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337/35 "2021-04-16T22:11:18Z")

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By the way, this

> [@analogoutput quoting Henry](#):
>
> The best way to tweak these is by ear: while listening, adjust them for minimal harmonics. It is often the case that what you think might be the best setting by eyeball on a scope in fact falls short of what the ears can detect.

is similar to what Wilson says in his VCO writeup, and it infuriates me. It may all be true but it’s absolutely useless unless you know what to listen for. I don’t know how to identify “minimal harmonics” by the sound. In fact while adjusting the sine on my VCO, I found the apparent tone quality varied if I turned my head relative to the speaker. In the end I settled for something fairly sine-ish looking on the scope.

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