[sdiy] Analogue Percussion - cymbal circuits

[j vallier]

Steve,

the Synbal project at the E-Music DIY site

http://www.physicsenterprises.andrews.edu/diy_archive/schematics/drums/

has a nice circuit based on inverter-oscillators and an XOR chip (upper-left 
hand corner of the schematic) to make nice hihat sound when mixed with a 
simple transistor noise source and gated with a simple 3080 VCA followed by 
a HPF. It's not single-chip solution but is relatively easy and lends well 
to customization by experimenting with cap values. I got a very DR-110 
sounding HH and Ride from this.

HTH

Peff




>From: steve jones <stevejones at hotpop.com>
>To: synth-diy at dropmix.xs4all.nl
>Subject: [sdiy] Analogue Percussion - Anyone know where I can obtain a 
>SN94281 chip?
>Date: Wed, 02 Apr 2003 13:31:01 +0100
>
>Hi All,
>I've built 3 Midwest Analogue Products percussion synths: ADV Bass,
>ADV Snare and Classic Snare+ and I want to add to them with the Hihat
>and Percussive Voice (from the book "Electronic Music Circuits: The
>Reprints" by Thomas Henry) -
>http://www.midwest-analog.com/cat-book.html
>
>I have a couple of the SN76477 chips, but can't find the SN94281 chip.
>Any suggestions where to find this? Or any other Hihat designs - I'm
>also looking for rimshot and cowbell voices as well as a simple "audio
>to 5v trigger" converter circuit to enable me to use the audio outs
>from a TR707 to trigger my MAP drum synths.
>
>Also, I'm still looking for a schematic for a Sound Master SR-88
>Memory Rhythm Machine....
>
>Regards,
>Steve Jones,
>Manchester, UK.
>
>


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