# Space Drum (from today's Patreon feed)

**URL:** <https://lookmumnocomputer.discourse.group/t/space-drum-from-todays-patreon-feed/1394>\
**Category:** DIY STUFF\
**Created:** [July 6, 2020, 8:03pm UTC](https://lookmumnocomputer.discourse.group/t/space-drum-from-todays-patreon-feed/1394 "2020-07-06T20:03:52Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [July 7, 2020, 12:02pm UTC](https://lookmumnocomputer.discourse.group/t/space-drum-from-todays-patreon-feed/1394/6 "2020-07-07T12:02:55Z")

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> [@Maxhirez](#):
>
> I might take a shot at this.

Seems you can simplify it quite a bit by 1) using a [mikrokosmos](https://lookmumnocomputer.discourse.group/t/analog-output-mikrokosmos/720) for the input, 2) dropping the modulation bits in the upper right corner (that’s from the super space drum), and 3) using a dual supply, instead of the power supply bits. What’s left is two LM13700s and one LM358 (½LM324, or you could use a TL072 etc).

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