Vintage Simmons Drums (UK) Users Group

Hi,

> You could make a very simple Simmons ROM player (well actually, it would
> play any similar chip, probably Sequential Drumtrak ones too) by just
> having a 13- or 14-bit counter clocked at a few kHz (anywhere from, say,
> 6kHz to 40kHz) attached to the address lines,

I did this a few years back ;-
http://www.modulus-music.com/products/modular/docs/modulus6.pdf

Schematics are there for anyone who wishes to build one.

Paul