In Development: New DIY Monosynth MSW-810

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Altitude909
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In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Sun Feb 14, 2021 7:00 pm

So here's the new Project: MSW-810

Single OSC Monosynth based on the somewhat obscure Roland DG CMU-810. Its like the weird cousin of the SH-101 and MC-202 that only had CV control but added a Mixer and and extra CV controlable VCA

Features:
  • CEM3340 OSC
  • IR3109 VCF
  • 202 LFO
  • 2nd VCA with external CV Control
  • 2 External Inputs

This will be available as a DIY kit with case and partial parts kit likely this summer. Its a farily straight forward build with a simple, inexpensive BOM

Quick demo:


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Re: In Development: New DIY Monosynth MSW-810

Post by MoyaMoya » Sun Feb 14, 2021 7:01 pm

nice!

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Re: In Development: New DIY Monosynth MSW-810

Post by analogmonster » Mon Feb 15, 2021 2:49 am

Yeah, I like it!

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Re: In Development: New DIY Monosynth MSW-810

Post by guest » Mon Feb 15, 2021 3:20 am

sounds awesome! also like the mashup of halloween and valentines day.
openmusiclabs.com

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Altitude909
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Re: In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Mon Feb 15, 2021 7:42 am

everyday is Halloween here.

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Re: In Development: New DIY Monosynth MSW-810

Post by kevin0 » Mon Feb 15, 2021 8:32 am

Very cool!

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Re: In Development: New DIY Monosynth MSW-810

Post by kevin0 » Mon Feb 15, 2021 8:33 am

Are you going to keep the aesthetic of the CMU-810 case?

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Altitude909
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Re: In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Mon Feb 15, 2021 9:16 am

kevin0 wrote:
Mon Feb 15, 2021 8:33 am
Are you going to keep the aesthetic of the CMU-810 case?
Yeah. Simple, spartan. The layout is the same (it fits the 810 case) so the case will be very similar. IDK about the big wedge thing, I want to do something a bit smaller profile, its 90% empty space

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Re: In Development: New DIY Monosynth MSW-810

Post by ringroad1 » Mon Feb 15, 2021 9:28 am

Looks nice, I'm tempted.

Did you ever find a service manual for the CMU-810? Interested to know what the differences are between it and the 101/202

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Re: In Development: New DIY Monosynth MSW-810

Post by werock » Mon Feb 15, 2021 9:48 am

Sounds very Roland like. What are you using for the filter instead of the 3109?

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Re: In Development: New DIY Monosynth MSW-810

Post by kevin0 » Mon Feb 15, 2021 10:03 am

Altitude909 wrote:
Mon Feb 15, 2021 9:16 am
kevin0 wrote:
Mon Feb 15, 2021 8:33 am
Are you going to keep the aesthetic of the CMU-810 case?
Yeah. Simple, spartan. The layout is the same (it fits the 810 case) so the case will be very similar. IDK about the big wedge thing, I want to do something a bit smaller profile, its 90% empty space
Low profile minimalist grey box sounds very good.

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Altitude909
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Re: In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Mon Feb 15, 2021 10:13 am

werock wrote:
Mon Feb 15, 2021 9:48 am
Sounds very Roland like. What are you using for the filter instead of the 3109?
genuine IR3109. The AR clone will be fine

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Re: In Development: New DIY Monosynth MSW-810

Post by MoyaMoya » Mon Feb 15, 2021 10:54 am

Are the AR clones still in production? I seem to remember Jeroen shelving the project to pursue other interests..Mainly the Rev-1 surface mount ssm filter

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Altitude909
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Re: In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Mon Feb 15, 2021 11:33 am

MoyaMoya wrote:
Mon Feb 15, 2021 10:54 am
Are the AR clones still in production? I seem to remember Jeroen shelving the project to pursue other interests..Mainly the Rev-1 surface mount ssm filter
afaik he is, there was a blurb from him somewhere recently. I have a fair number of 3109s here that I'll offer with the first batch

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Re: In Development: New DIY Monosynth MSW-810

Post by toneburst » Mon Feb 15, 2021 2:16 pm

This looks intriguing, @Altitude909, good work! Will keep my eye on this thread.

I like your black X0X Heart a lot too. I understand it's a custom job, but any chance you'll sell the panels, knobs and modified Pacemaker board at some point? It might help drive sales of your matching 303 Sequencer module ;)

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Altitude909
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Re: In Development: New DIY Monosynth MSW-810

Post by Altitude909 » Mon Feb 15, 2021 5:20 pm

toneburst wrote:
Mon Feb 15, 2021 2:16 pm
This looks intriguing, @Altitude909, good work! Will keep my eye on this thread.

I like your black X0X Heart a lot too. I understand it's a custom job, but any chance you'll sell the panels, knobs and modified Pacemaker board at some point? It might help drive sales of your matching 303 Sequencer module ;)
unfortunately no. I dont have access to those knobs beyond what I have here (they come in full sets only), the pots are handmade and the panel control board would need a relay since I had to drill out stuff to get it to fit. Too much

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Re: In Development: New DIY Monosynth MSW-810

Post by midirobot » Fri Feb 19, 2021 12:12 am

nice one ,can't wait : )

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Re: In Development: New DIY Monosynth MSW-810

Post by devinw1 » Fri Feb 19, 2021 1:04 am

Nice to hear from ya my man! Looking and sounding sweet! +10 for wearing the skeleton suit for the demo. Kind of sad I hadn't thought of that first TBH . :d

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