[sdiy] More analog kickdrums

[gregory zifcak]

i added 6 more trigger outs to mine. you can't copy the rim trigger circuit 
because it comes out of the cpu already formed. i found a schematic for 
converting the internal s-triggers to v-trig using transistors. it's not 
perfect though. it triggers my drum modules really well, but the sh101 
glitches a little bit from it. it might be more accurate to use a 555 or 
something as a one shot.

greg

>From: steve jones <stevejones at hotpop.com>
>To: Johannes Öberg <johannes.oberg at gmail.com>,        
>synth-diy at dropmix.xs4all.nl
>Subject: Re: [sdiy] More analog kickdrums
>Date: Fri, 04 Mar 2005 15:12:08 +0000
>
>I've been toying with the idea of adding extra trigger outputs to my
>707, but I can't read the schematic. Have you considered this? If so,
>have you managed to copy the trigger circuit?
>
>On Thu, 3 Mar 2005 12:54:12 +0100, you wrote:
>
> >I'm thinking about modding my TR-707 to feature an analog bass drum,
> >preferably of 909-ish flavour. However, I would also like to be able
> >to do traditional "trance"/EBM kicks, which are usually much more
> >synthetic and "laserzap" sounding, somewhat like
> >http://www.looperman.com/00loops/loops_drums/Kick_loop_b_140bpm.zip
> >
> >(sorry, I found no better example online; I really mean a sound a bit
> >more "laserzappy" than that)
> >
> >The 909 bass drum circuit seems a bit too complex for my purposes. The
> >ADV Bass doesn't seem to have quite the sound I'm looking for. OTOH,
> >the sound sample sounds as if it is drenched in reverb, perhaps it
> >sounds better IRL? I found no dry samples online. Has anybody built it
> >and know if it would fit my purposes?
> >
> >If not, do you guys have any other simple bass drum circuits to
> >recommend? The PAIA one? Perhaps I should just breadboard a few of
> >them, but I'm still putting together my surplus parts order :-)
>
>
>