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Ancient Chip!
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dobart



Joined: Feb 20, 2007
Posts: 10
Location: SEATTLE

PostPosted: Thu Oct 25, 2007 9:53 am    Post subject: Ancient Chip!
Subject description: MM5871
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Rhythm Generator IC, can't find anything online other than that it's a national semi part, and it's radio shack part number 276-1785.

I chanced into two of these in a GREAT pile of buzzword 70s analog synth chips. I'd like to do them the service of setting them up in something nice, and would be glad to record circuits and sights and sounds while doing so. The tough part is deciding wether or not the sole 566 I have will be a VCO or something more like Thos. Henry's drum voice.

Cheers!
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dobart



Joined: Feb 20, 2007
Posts: 10
Location: SEATTLE

PostPosted: Thu Oct 25, 2007 12:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Here's the .pdf if anyone's interested. Found it on myspace of all places. Looks like funny supply voltages, but I found some tricks for another old negative supply chips I have and will see how well they apply.


MM5871.pdf
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MusicMan11712



Joined: Aug 08, 2009
Posts: 736
Location: Upstate New York USA
Audio files: 148

PostPosted: Wed Mar 06, 2013 5:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

Radio Shack part 276-1785 datasheet - MM5871 Rhythm Pattern Generator


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