[sdiy] battery powered resonant filter?

[Dominic Tarr]

what about using 2 9volts, would you beable to run a filter on +-9V

I remember hearing that the 303 runs on batteries, about 12C sizes or some thing silly like that, so that would be 18v? i.e. +-9

prehaps you should have a look at some 303 scematics.


-----Original Message-----
From:	Paul Perry [mailto:pfperry at melbpc.org.au]
Sent:	Thu 4/07/2002 12:53 p.m.
To:	synth-diy at dropmix.xs4all.nl
Cc:	
Subject:	RE: [sdiy] battery powered resonant filter?

There is also the brute-force approach of using voltage
doubling chips. Or =-15v worth of batteries, if it comes
to that..
Seriously, I just built a box with a 9v battery going to a 
doubler & dual inverter (LTC1044s). 
Then you only havew to concentrate on low current ;D

paul perry melb aust