[sdiy] Drone Synth

[john mahoney]

> ...but only square waves

If I recall correctly, Scott Gravenhorst has used a PLL to generate saws from squares. Would that be useful?

He's also worked on some kind of divider for creating different intervals from a master (high speed) oscillator.

The above is from memory, perhaps Scott can add some details.
--
john


  ----- Original Message ----- 
  From: Steve Allen 



  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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