[sdiy] SSM2164 state-variable filter PCB now available

[Neil Johnson]

Hi all,

If I may be so bold... a little announcement:

PCBs for my SSM2164-based 3-pole state variable filter are now  
available.  Details, etc, here:
	http://www.milton.arachsys.com/nj71/index.php? 
menu=2&submenu=0&subsubmenu=1

Note: I've decided to try a standardised form factor for my PCBs,  
80mm x 80mm (3.15" x 3.15") with 70mm x 70mm (2.75" x 2.75") M3  
fixing centres.  Should make it easy to stack them for large multi- 
PCB systems.

It sounds quite clean - being state variable there isn't the  
distortion/character that you get with a ladder filter.  As with any  
analogue system, drive the input hard and it will distort, if that's  
what excites you.

Sometime this week (perhaps a job for the weekend) I'll put up some  
MP3s demonstrating this filter.

Cheers,
Neil
--
http://www.njohnson.co.uk