[sdiy] Re: DRM-16 schematics on the web

[Frédéric Bourgeais]

Really Thanks Fredrik,

Seems to be easier to build than find the good sounding chip,
and you're right, I think the patterns are the other key of this 
drummachine

++Fred


>
> On public request, I have put the schematics of the EH DRM-16 on the 
> web for
> you.
>
> In the schamtic, there are four amplifiers named "1048". This refers 
> to the
> EH1048, which is actually a CA3094. Which in turn is more or less a 
> CA3080
> with a darlington output. Maybe you can replace them with some other 
> OTA
> (such as CA3080, NE5517 or LM13600). But I would not recommend that, 
> since
> one of them is the noise source and quite possibly the key to the true
> DRM-16 sound.
>
> Yes, the DRM-16 sounds really cool, a whitenoise sort of autofunk 
> drummer.
> Also, the "Space drum" is unique and superfunky. It would be nice to 
> hear
> some sort of jazz beat out of it, but alas, it has only country, funk, 
> disco
>
> and rock. I think one of the things that is so great with it is that 
> the
> patterns are so well programmed.
>
> I have put the schematics (two pages) on
> http://www.minod.com/drm16/schem.htm
>
> Unfortunately, the first page is low in resolution. I will try to fix 
> that,
> but right now I am not good friends with the scanner. But the voicing
> schematics are readable.
>
> Good luck!
>
>
> Fredrik C
>