[sdiy] +/- 9v synth circuits

[Julian]

remember sealed lead acid batteries too...

granted, somewhat more expensive, but easy to get 12v ones, and rechargable
etc.etc

julian

(what im planning for the asm-1 when i eventually start)

----- Original Message -----
From: "Ryan Guilfoyle" <netroin at yahoo.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, December 02, 2003 6:56 PM
Subject: [sdiy] +/- 9v synth circuits


> Wondering if anyone can give me some insight on a
> project I'm working on. I'm trying to make a small 9v
> battery powered synth, for open mic nights/use at
> college. It does not need to be very complex or
> expensive, only portable and stable tuning wise. I've
> already got an LFO/AR and some cv processing circuits
> working on +/-9v, the main problem I see is making a
> making a multimode SVF, and a VCO. The synth does not
> need to have more then a 3-4 octave range on the vco's
> ect.. My planned config is 2 pulse/tri vco/2 lfo/ 2
> env/ 3way mixer/MM vcf/lag and S&H/noise and 2 vca's.
> I have a bunch of EFM boards I thought I lost in my
> last move, and it would be very nice if i could get
> them to run on +/-9v.I will be following the bat's
> with voltage reg's. Any pointers tips ect.. would be
> greatly appreciated.
>
>
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