# Analog Switch to pass sound from VCO

**URL:** <https://lookmumnocomputer.discourse.group/t/analog-switch-to-pass-sound-from-vco/6643>\
**Category:** DIY STUFF\
**Created:** [October 29, 2023, 10:38pm UTC](https://lookmumnocomputer.discourse.group/t/analog-switch-to-pass-sound-from-vco/6643 "2023-10-29T22:38:47Z")\
**Posts on this page:** 1\
**Showing post:** 7

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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:** [October 30, 2023, 7:46pm UTC](https://lookmumnocomputer.discourse.group/t/analog-switch-to-pass-sound-from-vco/6643/7 "2023-10-30T19:46:03Z")

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> [@craigyb](#):
>
> As long as your signal is unipolar and not bipolar it wouldn’t be an issue.

That’s the question… The [Kosmo Specification](https://lookmumnocomputer.discourse.group/t/kosmo-specification/896) says “-5V to +5V typical” even though the 1222 puts out the 3340’s 0 to x volt signals (where x is 4, 8, or 10.5) unaltered. The Kassutronics VCO 3340 scales and offsets them to zero centered 10 Vpp outputs, as does the T. Henry VCO Maximus, and the MFOS VCO has similar outputs. So it depends on what you use.

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