[sdiy] Drone Synth

[Scott Bernardi]

The Obesifier circuit turns a single VCO into a real nice drone. There's 
samples on the site.
http://home.comcast.net/~sbernardi/elec/og2/og3_obesifier.html
I've got a simpler with six stages version and two modulation inputs 
without the onboard modulation LFO's (it still has a fixed LFO for each 
stage).

Steve Allen wrote:

> Hello All,
>  I'm looking to build a module that will be used to generate a drone 
> tone to under current the main theme in a musical pieace. I've looked 
> at using 555 timer to CD4024 divider, a dozen of those would be cool, 
> but not very flexable once tuned up.
>  How about CD4046 PLL's using the divider scheme, more flexable, but 
> only square waves. Hum....... A bank of Rene's CMOS VCO's ........ a 
> little complex but very useful.
>  Any ideas? Hope I'm not being too vague or.... well, never mind. Any 
> and all ideas will be appreciated.
>  
>  Thanks,
>    Steve
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